Condenser Fan Motor Wiring for Goodman AC Heat Pump 3 Ton
Condenser Fan Motor Wiring for Goodman 3 Ton
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Hello Everyone,
I have a GOODMAN A/C Heat Pump Model# CPLE 36-1 installed 3 years ago. Last week I turned the unit on, the compressor hums (not run)about 3-5 minutes and stop quiet. Also the condenser fan did not run. I called the A/C installer back to check and he said the condenser motor is bad and he said the fan motor only warranty for 1 year although I called Goodman Customer service who said my unit is warranty 5 years for Compressor and all function parts.
I can not wait for repairman to come back;therefore, I buy a new A.O Smith Condenser Fan Motor to match the old motor 1/4 HP, 1075 RPM 208-230 V, Single Phase, 48 Y Enclosed, CAP 5 MFD , 370 VAC.
I am confused because the Old motor has 3 wires: Black, Brown and Purple:
* Black wires------->Contactor T 1.
* Brown ---------> Capacitor terminal marked F. This is Dual Function capacitor Model # 27L568, 45 MFD / 5 MFD 370 VAC Protect P968 B9457 - 7200 /GREEN
* Purple ------------> DF2 terminal in Defrost Control Board.
The Defrost Control Board # 0334 1084-200 C GOODMAN P/N B 12260-08.
Here the rest of Wires I observe from the outside unit:
* Med. Yellow wire from Compressor connects-------> Capacitor marked H.(Compressor).
*A short Med. Red wire connects Capacitor marked C (Common) to contactor T2 and another long Med. Red from the same Capacitor terminal marked C connects -------> DF1 terminal in Defrost Control Board.
* Big Black wire from compressor connects --------> Contactor T1.
* Big Red wire from compressor connects --------> Contactor T2.
It also confuse me that why Black wire (Power) connects -----> to L2 and White wire to L1.
The new matching A.O Smith motor, (Model# F48K92A01) has 4 wires: Brown, Brown with white stripe ( Both have female terminals ), Black and Yellow (W/O terminals).
The diagram on the new motor shows 2 Brown wires to Capacitor, Black and Yellow to 2 lines. Like you said when buying a new motor we should buy a new capacitor, but the box outside has no room to fit another capacitor 5 MFD with the old one. The old capacitor has Dual Function 45 / 5 MFD. I test the old capacitor with Digital ohmmeter between those terminals C + H and C + F ------> Results of 2 measures, the numbers reading climb high then scaling back to Infinity. Is that still good?
I hope I provide enough information for all the experts to help me to walk through this maze.
Thank you very much for your time to help.