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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Trying to figure out if my start relay is fried or if

Customer Question

Trying to figure out if my start relay is fried or if something else is wrong with fridge? Anyway to check the start relay on fridge? There's no continuity between two windings
JA: What's the make and model of the fridge? And can you guesstimate how old is it?
Customer: Mzd2766ges
JA: Do you plan on doing the work yourself?
Customer: About 10 years
JA: Anything else we should know to help you best?
Customer: Yes I'm a hvac tech Not refrigeration but doing some work for family
Submitted: 2 months ago.
Category: HVAC
Expert:  bonzaco replied 2 months ago.

OK have you got a voltage across the relay and overload assembly - Ian

Customer: replied 2 months ago.
I'll check.
Customer: replied 2 months ago.
I don't have any voltage coming out of the relay. But the condenser fan tries to start very weakly and shuts off. No compressor activity.
Customer: replied 2 months ago.
The fridge was working but was leaking. I took it apart had the evaporater was partially frozen. I cleared up the ice and frozen drip pan, put everything back then suddenly the fridge stopped working 2 minutes after I plugged it back in.
Customer: replied 2 months ago.
I have 120 from the outlet
Customer: replied 2 months ago.
Still waiting to get an answer - why was I charged already?!
Customer: replied 2 months ago.
Please refund my money
Expert:  bonzaco replied 2 months ago.

You have paid a deposit that is fully refundable if we do not resolve your issue - however if you dont wish to proceed thats fine I will opt out and let you reclaim you funds.

Customer: replied 2 months ago.
If there's no further info you can offer please refund my money. Thanks
Expert:  bonzaco replied 2 months ago.

Do you have 120 volts at the compressor connections?

Customer: replied 2 months ago.
There's 120 from each wire of compressors to ground
Expert:  bonzaco replied 2 months ago.

OK check between connectors N and 1 on the compressor relay and overload assembly - not to ground.

Customer: replied 2 months ago.
Nothing. No voltage
Expert:  bonzaco replied 2 months ago.

OK and did you carry out the defrosting with the unit still connected to the supply?

Customer: replied 2 months ago.
No. I took out plug.
Customer: replied 2 months ago.
Maybe ice maker molex was wet when I plugged it back
Expert:  bonzaco replied 2 months ago.

First thing I would do is check the main circuit board and see if you have blown any of the fuses

Customer: replied 2 months ago.
Where is it located
Customer: replied 2 months ago.
Should I have voltage between n and 1
Expert:  bonzaco replied 2 months ago.

Yes, N = neutral supply, 1 = switched live from thermostat or main pcb.

Customer: replied 2 months ago.
Ok. Any ideas where main circuit board is
Expert:  bonzaco replied 2 months ago.

Either on the top or around the back usually.

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