Heat Pump
Home Test AC_Heating Wiring 1 , Wiring 2, MechanicalHeatMode, MechanicalCoolMode , TXVCoolMode, TXVHeatMode , CapWiring, HeatpumpCool.jpg Charge Table , 460V Diagram, Mechanical Chart , Cold Mode, TXV1, TXV2,
| Low side> High side (~10#) + When running, # both sides quickly going up: Release freon in low side a bit, then run sys again |
| Low side=>high side+ High side=> low side: one of compressor valves (~12Ω) is bad |
| Chart: LG Window unit |
| Reserving Valve: | Liquid line=200F at any mode, anywhere |
Defrost Problem:
Ambient Sensor = check sensor with Temp Resistance Chart , check voltage at sensor pins onboard =[5_6 DC volts]
Coil Sensor = similar to Ambient sensor
CC =Contactor, PS1 = Pressor Switch 1, PS2 = Pressor Switch 2 , DF = Defrost Thermostat sensor Defrost Control board
Heat pump Defrost Rewiring
