Need quick response. Hubby is about to purchase new frig/freezer but I’m not convinced the old one is a goner. The frig and freezer stopped cooling less than 72 hours ago. We have since replaced the defrost thermostat–didn’t help. We have not replaced or checked the defrost timer or heater. I know we could/should test both to see if they are working. I need to get an ohmmeter first.
In the meantime can anyone tell me if this is a factor … the coils are only partially freezing up (only 1/4 to 1/2 of the coils). Hubby seems to think that indicates a problem other than the defrost system. ??? Thanks for any quick help/advice.
Hi.
If the evaporator coils are partially covered with frost it’s indicating a sealed system problem:freon leak, restriction, bad compressor.
I assume that you have checked if the condenser fan motor is running and the condenser coils are clean.
Simon.
It is important that you check the coils after the compressor has run for at least an hour. Do it shortly after a defrost cycle or during a defrost cycle and you could come to the wrong conclusion.
By the sound of it I have to agree with Simon that it is a sealed system problem, just want for you to be sure about this as it involves scrapping the fridge.
Repairing a sealed system is expensive as you need a pro and it usually makes more sense to put the dollars towards a new unit.
Here is a site with examples.
http://www.applianceaid.com/refrigerator-not-cold-enough.php
Take a look at the pictures on the following part of the page. It is about half way down
"Totally covered coils with white snow is a frost free problem. and the rest are bare is an indication of a system problem. [COLOR=“Blue”]Example picture one, example picture two, example picture three.[/COLOR] System problems may be a leak in the refrigeration tubing, an inefficient not 100% pumping compressor. "
Thanks guys! Still holding out hope that it is the defrost system. Just to let you know, the timer IS bad. Also, We have cleaned out the coils-- inside and underneath thoroughly. Now my question is, should i buy the $35 timer just to see…or let go and start shopping? The unit is 11 years old. How coincidental is it that the timer goes out and there’s a system leak? Are things made to last a maximum of 10 years?.. just thought we would get at least 15 years.
Thanks again for your suggestions and the weblink!
After viewing the pictures, i’m pretty sure you guys (and my husband) are right. Thanks for your help. Now i’m off to check out craig’s list…
You are welcome.
Simon.