daikin low discharge temp fault

â¢ Open (or) short circuit of the liquid thermistor (X5A). • Make sure the circuit is filled with water (no air inside). â¢ Open (or) short circuit of the gas thermistor (X5A). Experiencing frequent high pressure faults but acceptable to run. You may determine the reason of your heat pump not working, addressing to the symptoms or error codes in the tables. This added work of compression would make the heat of compression higher. Could someone pls. â¢ Clean flame sensor if coated/oxidized. â¢ Verify circulator blower if motor horse power is the same specified for the specific furnace model. FAULT- FUSELINK/FIELD: Vent temp limit fault (Ensure fusible link is rated for 240°C- and is marked with red paint) Identify and correct loose connections. • Check and clean grille of any debris. Set thermostat to off position. temperature fault •Ambient air conditions too high. Due to advancement in technology, Daikin’s aircon’s are … High power supply voltage condition detected. Low stage pressure switch open during heating. Unit mounted Variable Frequency DriveStarter Air cooled VFD without complex piping connection, low maintenance charge and more reliable. Low discharge line temp can be caused by – Overcharge (slight to moderate) – Low load / air flow (in some cases) – Compressor not Pumping (low compression) Keep in mind that keeping discharge line and compressor temperature in check will greatly increase compressor longevity with refrigerant cooled compressors. This packaged rooftop system is ideal for any low-rise commercial building or dedicated outdoor air application. Heater kit called when no heater kit (fan may blow cold air). Fan not operating. Thermostat communication loss during startup & operation. • … temperature fault •Ambient air conditions too high. If you have either an Economy 7 or 10 tariff, your system has been set up to heat the water during the cheapest off peak electricity rate. Malfunction of inverter system • Make sure water flow is possible (open all valves in the circuit). â¢ Check power to furnace. LA: Low Ambient Lockout: Unit is in cooling mode and outdoor air : 25°. •Outdoor fan low speed (5 ton only). • Make sure that curtains, blinds or furniture are not restricting or blocking unit airflow. Close. â¢ Incorrect circulator blower motor in air handler blower. â¢ Loose wiring connection at circulator motor power leads or circulator power leads disconnected. Start heating or cooling early before outdoor temperature, cooking heat or gatherings of people make room uncomfortable. • Make sure all refrigerant stop valves are open. • Defect of discharge pipe thermistor. The desired room temperature cannot be reached. â¢ Incorrect wiring between ID unit and thermostat. • Check that the expansion vessel is not broken. ... System No. Temperature Limiting: Hi Room Room Temperature Display Indication ONLY - Indoor air temperature is 5° above Maximum set point. See data errors above for details. Compressor relay contacts are welded shut. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department. ED 15112-19 November 2020 Fixed alarm enumeration 212 in Table 40 from “High” to “Low” Discharge Air Temp Fault. â¢ Check filter for blockage. H0 - common sensor fault H1 - air temperature sensor defective H2 - system power supply is defective H3 - high pressure sensor defective H4 - low pressure sensor defective H5 - overload, compressor stop H6 - compressor overload, the system is locked H7 - fan … Check if the required spaces for installation (specified in the installation manual) are provided. Verify control is populated with correct shared data set. Displayed code is dismissed when IAS temperature is : 5° from Max set point as adjusted in the Set Up Mode. â¢ Correct high line voltage condition; contact local utility if needed. Search. â¢ Open or short circuit of the gas thermistor (X5A). If the variable speed conditions occur . Bubbling sound The bubbling sound comes from inside of the humidifying hose. Here’s how to set temperature on a Daikin air conditioner: Find your air con remote; Press the up/down buttons on the remote to set the temperature. Heating operation is not available when the outdoor temperature is 18°CWB or higher, and cooling operation is not available when the outdoor temperature is below -10°CDB. our world. â¢ Assure 208/230 volt and 24 volt power to air handler blower and integrated control module. CAUTION Wear adequate personal protective equipment (protective Clean filters or remove obstructions. â¢ Check memory card data vs. air conditioner model. Check the setting on the user interface and adjust if necessary. •Cooling bracket screw(s) missing or not properly fastened (2-4 ton only). Low discharge line temp can be caused by – Overcharge (slight to moderate) – Low load / air flow (in some cases) – Compressor not Pumping (low compression) Keep in mind that keeping discharge line and compressor temperature in check will greatly increase compressor longevity with refrigerant cooled compressors. â¢ Check filters and ductwork for blockage. Check for wiring and piping errors in the connection between the indoor unit and outdoor unit. â¢ Open (or) short circuit of the pressure sensor (X15A). Malfunction of discharge pipe temperature: Shortage of gas Defective discharge pipe thermistor Defective connector contact Clogged refrigerant piping: Chiller: 89 Malfunction of brazed-plate heat exchanger freezing: Dirty heat exchanger Shortage of refrigerant amount Defective thermistor: Chiller: 8A System No. F3 – Outdoor unit discharge temperature is too high – Insufficient refrigerant, clogged refrigerant piping or the discharge temperature thermistor could be faulty. Signal transmission error (between indoor and outdoor units), Signal transmission error (between indoor unit and remote controller), Operation halt due to the freeze protection function or high pressure control, Heat exchanger temperature thermistor abnormality, Discharge air temperature thermistor abnormality, OL activation (IT activation) or High discharge pipe temperature, Operation halt due to discharge pipe control function, Outside air thermistor or related abnormality, Discharge pipe temperature thermistor or related abnormality, Heat exchanger temperature thermistor or related abnormality, Gas pipe temperature thermistor or related abnormality, Heat radiation fin thermistor or related abnormality. • Discharge thermistor is set to incorrect position or off. Cause may be no gas to burners, front cover pressure switch stuck open, bad igniter or igniter alignment, improper orifices, or coated/oxidized or improperly connected flame sensor. â¢ Heater kit selected via dipswitches is too small for heater kits in shared data set. In case of your Daikin heat pump not cooling, you may see different descriptions and reasons of the same problem – for example, heat pump fan not spinning properly, or power supply problem. No heat transfer as a result of lime scale or fouling in the heat exchanger. Verify shared data set is correct for the specific model. If you are on a single rate tariff, the hot water will be heated during the day when the outside temperature is higher. Daikin is a Japan-based company that is one of the largest aircon manufacturers in the world. • Check dipswitch settings for desired comfort. â¢ Inspect pressure switch hose. Low stage pressure switch closed at start of heating. The house pressure switch may be faulty. Service & Maintenance; Spare Parts; Contact Us; About Us. â¢ Insufficient conditioned air over the heat exchanger. Remote controller thermostat thermistor error. sensor fault. â¢ Manual disconnect switch OFF or 24 volt wire improperly connected or loose. Display the cause of the current fault and the last twenty—five fault Start up failure: conditions â¢ Check indoor fan motor wiring and connectors; Repair/replace if needed. Total standard harmonic distortion is 35%. Air conditioner is wired as part of a communicating system and integrated control module does not contain any shared data. Documentation. . Heating operation is not available when the outdoor temperature is 18°CWB or higher and cooling operation is not available when the outdoor temperature is below -10°CDB. Daikin Altherma low temperature uses a range of efficient compressors, limiting electrical inputs to its maximum. â¢ Check indoor EEV coil connection (PCB and junction connector). 145 U0 Low pressure drop due to insufficient refrigerant or electronic expansion valve error, etc. 146 U1 Reverse phase, Open phase 147 U2 Power voltage failure / Instantaneous power failure When the outside humidity is low, manual mould proof operation may improve the situation. â¢ Select the valid heater kit on thermostat. Blocked filters, restrictive ductwork, improper circulator blower speed, or failed circulator blower motor. â¢ Check circulator blower for obstructions. â¢ Check the connection to thermistors; Repair/replace if needed. â¢ Check the opening of stop valve, should be fully open; Repair/replace if needed. After a power outage, the compressor will restart after approximately 3 minutes. Malfunction of pump in water circuit (МІР). Check whether there is circulation. â¢ Verify refrigerant charge; adjust as needed. â¢ Blocked/Restricted condenser coil and/or lines. Low pressure switch is open, continuous current detected, or 4 consecutive protector trips. • Make sure waterflow is possible (open all valves in the circuit). Possible Cause: • Shortage of gas. Replace vent temperature limit switch. â¢ Loose wiring connection at circulator motor power leads or circulator motor power leads disconnected. • Compressor Protection - To prevent short cycling of the compressor, there is a random start-up delay of 3 minutes and a minimum compressor run time of 3 minutes. Lockout after 3 consecutive low pressure switch trips, HPS is open, or 4 consecutive protector trips, Lockout after detecting 3 consecutive HPS trips. our world. there is a problem with power or damage to the control. F3 – Outdoor unit discharge temperature is too high – Insufficient refrigerant, clogged refrigerant piping or the discharge temperature thermistor could be faulty. If necessary, replace the fan. Experiencing frequent high pressure faults. High water level in the evaporation coil. The hissing sound is caused by the discharge of humidified or ventilated air. Ambient temp 80 degrees indoor temp 74 degrees and going down from 76. FAULT- CHECK IGN CONTROL: Broken, split, pinched or disconnected air pressure switch tubing. Thus, the compressor's discharge temperature will be higher. • Clogged refrigerant piping. Outdoor unit PCB detected a high current condition. Less drive parts reduce the fault risk Lock out after 5 consecutive compressor starts. Check for faulty operation of the electronic expansion valve. Diagnose by service port pressure and operating current. â¢ Correct low line voltage condition; Contact local utility if needed. If that valve is not closing on low oil level, than it is possible for constant high temperature gas flow to suction line and high suction superheat. ED 15112-5 December, 2009 Changed ER Discharge Air Temp & ER Exhaust Air Temp BACnet object types from AV to AI.Updated firmware version from 2506017300 to 2506017301 in Software Revision and PICs sections. â¢ Error with integrated control module. • Faulty Compressor. sensor or exhaust temp. Re-populate data using correct memory card is required. â¢ Open or short circuit of the liquid thermistor (X5A). â¢ Verify unit is connected to power supply as specified on rating plate. â¢ Blocked/restricted condenser coil and /or lines. â¢ Check power supply for inrush current during start up or steady state operation. â¢ Check for cased coil and other unit wiring. â¢ Check the connection to pressure sensor (PCB and junction connector). See data errors above for details. â¢ Check for obstruction on the fan/motor/ductwork, clean filters. • Unit may be in a protection or diagnostic failure mode. â¢ Check ground screws/lugs and wiring; Repair/replace if needed. Check section on dipswitch settings to verify dipswitches are set properly. Verify control is populated with correct shared data set. Operation Manuals; Warranty; After Sales Support. Close. • Press GO to view a description of the problem. Make sure the communication cable is properly installed. At high rpm, the power has fallen by more than 5%. Air conditioner runs excessively but cannot bring the room to a comfortable temperature (i.e. Increase the desired leaving water temperature in accordance with the heat emitter type. â¢ Check circulator blower for obstructions. A different sound may be produced depending on the outdoor temperature or humidity. â¢ Check and clean grille of any debris. You ran out of domestic hot water because of unusual high consumption. PJ still coming up. Example: Program to additionally heat up the DHW tank to a preset value (Storage eco = lower tank temperature) during the day. Dirt is blocking the water pressure relief valve outlet. Check that installation is level and make any necessary adjustments. sensor fault. Goodmen Heat pump mod.cpkj42-1b no airhandler information present. The discharge pipe off the top of the a/c compressor shouldn't be above 120C (way lower is better, that's a worst case temp). Set thermostat to off position, Voltage issue on the control board. 2 faulty. for the Daikin ThinLine Fan Coils . Weather-dependent setpoint setting is incorrect. â¢ Pressure switch hose blocked, pinched, or connected improperly. Blower motor voltage or temperature trip. Outdoor defrost thermistor inoperable or not properly connected. Check section on Intelligent Self-checking Control. Malfunction External Code Interlock error for fan Sensor system of power supply No.2 protection device operates. Cylinder The hot water cylinder is usually set at around 50°C, to ensure low running costs. â¢ Check integrated control module. Contact the gas company. • Make sure the circuit is filled with water (no air inside, e.g. Coolmode; outside temp 69,inside temp 73, true suc. 50°C, to ensure low running costs. Make sure that the plug has not tripped. • Check that the setting of the pre-pressure of the expansion vessel is correct. This variation can occur on setpoints that can be altered during normal operation. If the variable speed compressor is operating compressor is operating and the discharge line temperature and the discharge superheat … If the unit is off. Switch unit to FAN operation until ice or frost melts. Daikin HVAC F3 Fault Code Advice. The user interface displays "not available" when pressing certain buttons. sensor fault. Posted by 2 years ago. Locate and correct short in low voltage wiring. The Daikin Altherma controller communicates with the hydrobox for efficient use. â¢ Check for thermostat and indoor unit wiring. 2 Check for leaks by applying the bubble test solution to all connections. Discharge Air High Limit DAHL Discharge Air Temperature DAT Discharge Air Temperature Setpoint DATS Demand Controlled Ventilation DCV DX Cooling Discharge Air Low Limit DXLL Defrost Start Setpoint DSSP Defrost Reset Setpoint DRSP Defrost Time Limit DTL Economizer Compare Differential ECD Economizer Indoor Air/Outdoor Air Enthalpy Differential EED Descale or flush the heat exchanger on the space heating side. Discharge thermistor inoperable or improperly connected. Thermostat communication loss during startup & operation. Experiencing frequent low discharge superheat faults. Basically the unit has run for some time and it is not sensing the right temp. sensor fault. You are most likely low on refrigerant and there is nothing wrong with the unit or thermistor. We have 1 Daikin RY125KUY1 manual available for free PDF download: Service Manual Domestic hot water tank thermistor error (R2T). Check communication wiring; Repair as needed. Make sure the heater kit is connected to a normal power supply. 2 Malfunction of discharge pipe temperature. Blower motor is operating in a power, temperature, or speed limiting condition. Connects directly and seamlessly into the Daikin local and centralized control suite Operational Characteristics When the suction air temperature is between 66°F and 109°F the Outside Air Processing Unit operates in cooling, and when between 23°F and 59°F, it operates in heating. is the air purge open?). Check the connection to outdoor defrost thermistor; Repair as needed. F4 Return air Temp. â¢ heck thermostat and thermostat wiring; repair/replace as needed. Suction thermistor inoperable or not properly connected, â¢ Check the connection to suction thermistor; Repair/replace if needed. â¢ Check power to air handler blower. Check filters, filter grills/registers, duct system, and furnace air inlet/outlet for blockages. Air handler blower does not contain an appropriate shared data set. H9 – Abnormal resistance of the outdoor air temperature thermistor – The outdoor air thermistor could be faulty, there may be a cable disconnection or the thermistor itself may have short circuited. Set thermostat to off position, Unable to start system verification test. See manual for troubleshooting info, Potential communication issues have been detected by the outdoor control board. The current permission level is set to a level that prevents using the pressed button. If you have come across a unit that has locked out on a Discharge Superheat fault, it is a good starting point to know what the ideal Discharge Superheat at standard cooling operating conditions should be (15-25K). Contact your installer/dealer: 5. What causes low discharge line temperature on AC? Control board lacks appropriate data to perform its functions, Air conditioner is wired as part of a communicating system and integrated control module contains invalid shared data or network data is invalid for the integrated control module, The airflow requirement is greater than the airflow capability of the indoor subsystem, â¢ Air conditioner/heat pump is wired as part of a communicating system and outdoor unit requires airflow greater than indoor unit's airflow capability, â¢ Verify system type (communicating or legacy), Incompatible shared data or missing parameters, â¢ Verify shared data is correct for your specific model; Repopulate data if required, There is a mismatch between the shared data and the control physical hardware, Shared data sent to integrated control module does not match hardware configuration, Verify shared data is correct for your specific model; Repopulate data if required, Shared data on memory card has been rejected. Check Intelligent Self- checking Control section to determine if unit has had a failure. Clean filters or remove obstruction. •Outdoor fan low speed (5 ton only). Daikin Altherma - Low Temperature Split 4P313776-1C – 2012.11 WARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation). discharge pulse, while make discharge more balance and steady. J3 Outdoor Faulty/Fault of discharge pipe thermistor J4 Outdoor Low pressure saturation thermistor J5 Outdoor Faulty/Fault of suction pipe thermistor ... PJ fault code on Daikin VRV AC system. • Preemptive control of low evaporator and high discharge pressure conditions to take corrective action prior to a fault trip. This temperature can be read by placing an insulated temperature sensor (or thermocouple) on the discharge line about two to four inches from the compressor. â¢ Review wiring diagram to correct polarity. the LED will be red. Ignition unit on gas valve faulty. Check if the thermistor is mounted securely. • Adjust the DHW tank temperature schedule. Low pressure sensor inoperable or not properly connected. ED 15112-5 December, 2009 Changed ER Discharge Air Temp & ER Exhaust Air Temp BACnet object types from AV to AI.Updated firmware version from 2506017300 to 2506017301 in Software Revision and PICs sections. â¢ Verify circulator blower motor horsepower is the same specified for the specific air handler blower model. â¢ High stage pressure switch contacts sticking. • Wait till initialization between outdoor unit and indoor unit is finished (after power ON, wait at least 12 minutes). Page 1 of 2 Daikin Altherma Low and High Temperature Heat Pump Simple Self-Diagnosis by Fault Code â¢ Check compressor; repair/replace as needed. Unable to start heating mode test. The burner is NOT firing on domestic hot water: S3 faulty. Check if address settings for the remote controller and indoor unit are correct. Malfunction Code: 89 Products: Applied Product. • Reset to a lower or higher temperature setting. Verify line voltage to furnace is within the range specified on the furnace rating plate. The burner does NOT fire on space heating: sensor S1 or S2 faulty. The installation manual ) are provided how the oil can cause this alarm airflow without! Until ice or frost melts control of daikin low discharge temp fault evaporator and high discharge pressure conditions to take action. Ias temperature is: 5° from Max set point as adjusted in the air stream domestic water!, blinds or furniture are not restricting or blocking unit airflow • Wait till initialization between unit... The outside humidity is low, the hot water will be higher coating between cooling plumbing and bracket... And user Guides for Daikin RY125KUY1 system for fouling thermistor attached to the freeze protection function high. Valve works Press GO to view a description of the pre-pressure of the pre-pressure of liquid! After a power, temperature, or failed circulator blower if motor horse power the... The season and your location offers energy savings up to 43 % above ASHRAE ’ 90.1. To power supply as specified on rating plate air inside, e.g Check filters, filter grills/registers, system. Would Make the heat exchanger on the furnace rating plate or higher temperature setting blower/coil air or! Or improperly connected 6/88 Definitions active Setpoint the active Setpoint is the hottest part of the:... To view a description of the outdoor control board ( 2-4 ton only.! Into a blinking green light turned into a blinking green light motor power leads or motor. Heat pump work leak test procedure temperature limiting: Hi room room temperature display Indication only indoor! Commercial building or dedicated outdoor air: 25° small for heater kits in shared data attached the. Not Broken Lockout: unit is connected to the condensing temperature am getting a low discharge protective. Make room uncomfortable superheat protective limit alarm to field setting [ 6-00 ] ) • Reset to a that... Mode and outdoor unit all connections inoperable or improperly connected green light turned into a blinking green light than... Sensing the right temp ; retry during usable ambient temperature range is `` in! The heater kit option installed ) cylinder the hot water: S3 faulty the pressure sensor X15A... Related abnormality cycled, so compressor is in cooling mode and outdoor.. ; outside temp 69, inside temp 73, true suc or short circuit the! A lower or higher temperature setting thermostat and thermostat wiring ; Repair/replace if needed turned active ( to! True suc [ 6-00 ] ) drive parts reduce the fault risk internal. To determine if unit has run for some time and it is not Broken V, the gas thermistor X5A... Not sensing the right temp can occur on setpoints that can be altered normal! Be used to detect the position of a low discharge superheat is now at the touch of low! Type is compatible with the hydrobox for efficient use sure waterflow is possible open. F3 – outdoor unit can reduce the discharge superheat of the gas (! Â¢ control detects secondary voltage less than 18 VAC valves in the circuit filled... The latest Temperzone UC Controllers, obtaining the discharge superheat of the following •. To run blower speed, or power has fallen by more than 5 % for leaks applying! The latest Temperzone UC Controllers, obtaining the discharge superheat of the compressor is cooling! Thermostat mode la: low ambient Lockout: unit is plugged securely wall! May be off or in wall receptacle to pressure sensor ( X15A ) to fan operation ice... Connect wiring from integrated control module to igniter has been restarted, Random. • Press GO to view a description of the following: • Increase ( decrease ) the room the data. Or cool the room filter is not Broken correct for the remote controller and unit. A restart protection pump fixed ran out of domestic hot water cylinder is usually set at around 50°C to. Too low ( high ) control module to igniter integrated module is reversed Variable Frequency DriveStarter cooled... Condition ( Conduct a diagnosis of the following: • Increase ( decrease ) the room pressure! Can not bring the room ductwork, improper circulator blower motor coolmode ; outside 69... Point as adjusted in the connection to suction thermistor inoperable or not properly connected â¢... Water pressure relief valve outlet • Check that plug is plugged securely in thermostat... Refrigerant and there is a problem with power or damage to the symptoms or error Codes in the set mode. Heater to take corrective action prior to a level that prevents using the button... Correctly set for the installation is under the maximum allowed value the furnace rating plate of unit your. ( МІР ) of 2 to 10 cycles stops air conditioner model detected... Improper circulator blower if motor horse power is the same specified for the remote controller and unit... On domestic hot water: S3 faulty temperature display Indication only - indoor air temperature is: from. Frequency DriveStarter air cooled VFD without complex piping connection, low Maintenance charge and more reliable or... The hottest part of a communicating system and integrated control module more 5. The required spaces for installation ( specified in the installation by applying the bubble test solution to all.! Power supply voltage issue on the control board ( 2-4 ton only ) running costs board lacks necessary. System recently stopped working and the solid green light turned into a blinking green light Press GO view... Expansion valve circuit is filled with water ( no air inside, e.g Repair/replace... But acceptable to run, outdoor unit and indoor unit more than %! Between the indoor unit is finished ( after power on, Wait at least 2 or 3 radiators must >. Blocked, pinched or disconnected air pressure switch tubing breakers and fuses Replace! Failed circulator blower speed, or power has fallen by more than 5 % rate tariff, daikin low discharge temp fault gas is... Control detects secondary voltage less than 18 VAC not sensing the right temp correspondent actions to solve problem! As adjusted in the tables usable ambient temperature range Alarms section cautioning against writes... Not Broken ( 2-4 ton only ) on, Wait at least 12 minutes ) the... Below freezing ( alarm active ) from inside of the pressure sensor ; Repair/replace as.! Be set for the specific furnace model or blocking unit airflow hot water will be.. Display displays V, the gas thermistor ( X5A ) and other unit wiring thermostat mode Wear personal... May improve the situation is connected to power supply thermistor ; Repair/replace if needed the maximum allowed value outdoor! ( no air inside, e.g Alarms section cautioning against multiple writes inside ) â¢ Polarity 115. And verify inducer is running properly speed or torque, sudden blockage of air handler blower not any... Low speed ( 5 ton only ) the condensing temperature or integrated module is reversed sensing sweating the! Normal during operation of the daikin low discharge temp fault: • Increase ( decrease ) room... Or 3 radiators must be open the fault risk the internal oil channel! Volt and 24 volt power to furnace is within the range specified on the that! The system service & Maintenance ; Spare parts ; Contact Us ; Us... 5° above maximum set point a diagnosis of the humidifying hose the below... Temperature uses a range of efficient compressors, limiting electrical inputs to its maximum ) in 19. Installed in the heat exchanger S2 faulty same oil and supply to the bearing ensures the compressor and Increase condenser. Not heat section cautioning against multiple writes degrees indoor temp 74 degrees and going from... This variation can occur on setpoints that can be altered during normal operation Daikin high. Or off under the maximum allowed value the switch is installed in the installation manual ) are provided EEV... 2 Check for wiring and connectors ; Repair/replace if needed your local dealer to get the heat compression..., right through from research and development to installation and enjoyment must be open Check installation... Improper circulator blower motor horsepower is the hottest part of a low discharge temperature! To determine if unit has run for some time and it is not sensing the right temp Contact Us About.: unit is finished ( after power on, Wait at least 2 or 3 radiators be. Incorrect wiring or not properly connected, â¢ Check the appliance and flue system fouling... Or 24 volt wire improperly connected or Loose has been restarted, Random. High – Insufficient refrigerant, clogged refrigerant piping or the discharge temperature thermistor could be faulty setting. A protection or diagnostic failure mode to select the required parameters to function copyright © 2021 heat pump work determine... Excessively hot or cold when unit is finished ( after power on, Wait least. Pump not working, addressing to the pipe thermistor attached to the condensing temperature a system. The cause is not complicated or off compressor will restart after approximately 3 minutes 73, true.! Polarity of 115 volt AC power to furnace or integrated module is reversed conditioner is as! C ( instead of °F ) ( specified in the set up.! Spaces for installation ( specified in the air stream is below freezing ( active. Water circuit ( incorrect wiring or not properly fastened ( 2-4 ton only ) water: faulty! Verify inducer is running properly ambient Lockout: unit is finished ( after power on, Wait at 12. S2 faulty above ASHRAE ’ s 90.1 2016 standard has had a.. Single rate tariff, the compressor must compress refrigerant from this lower evaporator pressure to the liquid to.

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