Whirlpool WGHP43 Installation Instructions Manual Download Page 13

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Too cool/warm and then too warm/
cool.

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Faulty thermostat. Test continuity of thermostat and wiring. Replace, if needed.

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Improper cooling anticipator. Check resistance of anticipator.

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Improperly located thermostat. Relocate thermostat.

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Airflow unbalanced. Readjust air volume dampers.

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Not cool enough on warm days.

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Dirty air filter. Inspect filter; clean or replace as needed.

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Dirty indoor coil. Inspect coil and clean, if needed.

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Not enough air across indoor coil. Check blower speed. Check duct static pressure and
filter.

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Noncondensibles. Recover charge. Evacuate and recharge.

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Recirculation of condensing air. Remove obstruction to airflow.

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Infiltration of outdoor air. Check windows, doors, vent fans, etc.

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System undersized. Refigure cooling load.

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Wrong type of expansion valve. Replace valve.

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Expansion valve restricted. Remove restriction or replace valve.

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Undersized expansion valve. Replace valve.

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Certain areas too cool, others too
warm.

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Dirty air filter. Inspect filter; clean or replace as needed.

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Dirty indoor coil. Inspect coil and clean, if needed.

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Not enough air across indoor coil. Check blower speed. Check duct static pressure and
filter.

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Infiltration of outdoor air. Check windows, doors, vent fans, etc.

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Airflow unbalanced. Readjust air volume dampers.

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Compressor is noisy.

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Overcharge of refrigerant. Recover part of charge.

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Broken internal parts. Replace compressor.

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Broken valves. Test compressor efficiency. Replace if needed.

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Expansion valve bulb loose. Tighten bulb bracket.

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Loose hold-down bolts. Tighten bolts.

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Heating Only—System runs—blows
cold air in heating.

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Internal compressor overload open. Test continuity of overload.

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Compressor stuck. Use test cord.

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Shortage of refrigerant. Test for leaks. Add refrigerant.

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Open element or limit on electric heater (heating only). Test heater element and
controls.

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Overcharge of refrigerant. Recover part of charge.

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Noncondensibles. Recover charge. Evacuate and recharge.

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Broken internal parts. Replace compressor.

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Inefficient compressor. Test compressor efficiency.

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Faulty reversing valve. Replace valve or solenoid.

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Faulty defrost control. Test control.

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Faulty defrost thermostat. Test defrost thermostat.

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Heating Only—Unit will not
terminate defrost.

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Faulty reversing valve. Replace valve or solenoid.

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Faulty defrost control. Test control.

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Faulty defrost thermostat. Test defrost thermostat.

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Heating Only—Unit will not defrost.

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Faulty reversing valve. Replace valve or solenoid.

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Faulty defrost control. Test control.

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Faulty defrost thermostat. Test defrost thermostat.

Problem

No Cooling/Heating

Cause/Test Method and/or Solution

Summary of Contents for WGHP43

Page 1: ...ion 9 Heat Pump Heating Cycle 10 TROUBLESHOOTING INFORMATION 11 ASSISTANCE OR SERVICE 16 Whirlpool and Whirlpool Gold Models WHP43 WHP44 WGHP43 WGHP44 WGHP46 WGHP48 WPIO 259L Placeholder for Bar Code Goodman 1 Hazards or unsafe practices could result in property damage product damage severe personal injury or death Hazards or unsafe practices may result in property damage product damage personal i...

Page 2: ...des or regulations The United States Environmental Protection Agency EPA has issued various regulations regarding the introduction and disposal of refrigerants Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines Should you have any questions please contact the local office of the EPA If replacing a condensing unit or air handler the syst...

Page 3: ...ing of refrigerants Goodman 13 WARNING Refrigerants are heavier than air They can push out the oxygen in your lungs or in any enclosed space To avoid possible difficulty in breathing or death Never purge refrigerant into an enclosed room or space By law all refrigerants must be reclaimed If an indoor leak is suspected throughly ventilate the area before beginning work Liquid refrigerant can be ver...

Page 4: ...tributor for assistance Mounting the evaporator coil above the heat pump will require an inverted loop in the suction line adjacent or near the connection to the evaporator coil The top of the loop must be slightly higher than the top of the evaporator coil Mounting the heat pump above the evaporator coil will require an oil trap in the suction line Install one oil trap at the evaporator for a hei...

Page 5: ... This is especially important on suction line filter dryers which are continually wet when the unit is operating NOTES Be careful not to kink or dent refrigerant lines Kinked or dented lines will cause poor performance or compressor damage Do not make final refrigerant line connection until plugs are removed from refrigerant tubing Before brazing verify indoor piston size by checking the piston ki...

Page 6: ...use Time delay fuses HACR type circuit breakers These devices have sufficient time delay to permit the motor compressor to start and accelerate its load HighVoltageConnections Route power supply and ground wires through the high voltage port and terminate in accordance with the wiring diagram provided inside the control panel cover LowVoltageConnections The indoor transformer must supply 24 volt A...

Page 7: ... R G W2 C Heat Pump Conventional Room Thermostat 18 Gauge 7 Wire Indoor Unit Red Green White Blue BU 18 Gauge 5 Wire BU OR See Note 3 Outdoor Thermostat Optional Closed on Temperature Fall 18 Gauge 6 Wire Needed When Outdoor Thermostat Is Used BU W OR Y R See Note 4 BU W G R C W2 O Y R R Y W W 1 2 3 4 G Y O C G R E R W2 BR R G W2 C Red Green White Blue See Note 4 BU W G R W3 Brown BR Heat Pump Con...

Page 8: ... specification to properly seat the sealing surfaces NOTE Do not introduce liquid refrigerant from the cylinder into the crankcase of the compressor as this may damage the compressor 1 Break the vacuum by fully opening liquid and suction base valves 2 Set thermostat to call for cooling 3 Check indoor and outdoor fan operation and allow system to stabilize for 10 minutes for fixed orifices and 20 m...

Page 9: ...eat and remove charge to lower the subcooling to 5ºF to 9ºF NOTE Do not adjust the charge based on the suction pressure unless there is a gross undercharge 2 StageApplication 1 Temporarily install the thermometer on both the liquid small and vapor large lines near the service valves Ensure that there is adequate contact Insulate the sensors well for the best possible reading Use the liquid tempera...

Page 10: ...perature Saturated Suction Pressure Temperature Suction Pressure Saturated Suction Temperature ºF Suction Pressure Saturated Suction Temperature ºF PSIG R 410A PSIG R 410A 50 1 78 20 52 3 80 21 54 4 85 24 56 6 90 26 58 7 95 29 60 8 100 31 62 10 110 36 64 11 120 41 66 13 130 45 68 14 140 49 70 15 150 53 72 16 160 56 74 17 170 60 76 19 Saturated Liquid Pressure Temperature Liquid Pressure Saturated ...

Page 11: ... Replace if needed Faulty thermostat Test continuity of thermostat and wiring Replace if needed Faulty transformer Check control circuit with voltmeter Replace if needed Faulty compressor contactor Test continuity of coil and contacts Replace if needed Evaporator fan will not start Blown fuse Inspect fuse size and type Replace if needed Loose connection Inspect connection Tighten if needed Shorted...

Page 12: ...door coil Inspect coil and clean if needed Noncondensibles Recover charge Evacuate and recharge Recirculation of condensing air Remove obstruction to airflow Wrong type of expansion valve Replace valve Expansion valve restricted Remove restriction or replace valve Undersized expansion valve Replace valve Unsatisfactory Cooling Heating System runs continuously little cooling heating Shortage of ref...

Page 13: ...dows doors vent fans etc Airflow unbalanced Readjust air volume dampers Compressor is noisy Overcharge of refrigerant Recover part of charge Broken internal parts Replace compressor Broken valves Test compressor efficiency Replace if needed Expansion valve bulb loose Tighten bulb bracket Loose hold down bolts Tighten bolts Heating Only System runs blows cold air in heating Internal compressor over...

Page 14: ...ace restricted part Too much air across indoor coil heating only Reduce blower speed Broken valves Test compressor efficiency Replace if needed Inefficient compressor Test compressor efficiency Wrong type of expansion valve Replace valve Expansion valve restricted Remove restriction or replace valve Faulty reversing valve heating only Replace valve or solenoid Faulty defrost control heating only T...

Page 15: ...y outdoor coil Inspect coil and clean if needed Noncondensibles Recover charge Evacuate and recharge Recirculation of condensing air Remove obstruction to airflow Wrong type of expansion valve heating only Replace valve Expansion valve restricted Remove restriction or replace valve Oversized expansion valve Replace valve Faulty reversing valve heating only Replace valve or solenoid Faulty defrost ...

Page 16: ... number in your correspondence Or call toll free 1 866 944 7575 WPIO 259L 2010 All rights reserved Registered Trademark TM Trademark of Whirlpool U S A Manufactured under license by Tradewinds Distributing Company LLC Jacksonville Florida Warranty provided by manufacturer All other trademarks are owned by their respective companies COMFORT COMMITMENT is a trademark of Tradewinds Distributing Compa...

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