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acadiel

GE TFX22ZPBEWW - Trouble manually engaging defrost

7 posts in this topic

Hey guys -

Had a defective defrost heater...

https://www.facebook.com/photo.php?fbid=10150529331082450

Bad heater (nothing on my meter on any of the resistance ranges)

https://www.facebook.com/photo.php?fbid=10150529219952450

Before thawing

https://www.facebook.com/photo.php?fbid=10150529279797450

After thawing

Anyway.. I put the new one in today (it's the dual tube model, http://www.repairclinic.com/PartDetail/Defrost-Heater-Assembly/WR51X10101/1399613 ) and hooked it up. Get some resistance on the meter, so good sign. It's installed.

I'm trying to advance the defrost timer (which I see under the controls in the fridge, near the light bulb). It makes incremental small clicking noises until the compressor/fans shut off. I then watched and hit the heater several times with a temperature probe (infrared) and did not see it go on. After about 10 minutes (to give the compressor time to cool down), I clicked it two more clicks, in which case everything came back on. It appears that the compressor/fans only shut off at the 3:45PM (or 9:15) across position and the click shortly afterward. In all other positions, everything appears to be working (fans, compressor, etc.)

So, what position do I need to click this in so that the defrost heater comes on?

Thanks!

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Need appliance parts? Call 877-803-7957 now!

... what position do I need to click this in so that the defrost heater comes on?

the position where the Compressor goes OFF

Imagine an 8 hour Timer with a number of "clicks"

The Defrost portion is about 1/2 hour.

The Defrost Thermostat (Switch) on the Evaporator may also be bad.

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Maybe I read it wrong but it sounds like acadiel advanced the timer into defrost before the thermostat was cold enough to be a closed switch.

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Maybe I read it wrong but it sounds like acadiel advanced the timer into defrost before the thermostat was cold enough to be a closed switch.

Yep, *doh*.

I had just defrosted the coils and it was rather warm in there when I tried it. I'll try it again tomorrow morning after it's been sitting all night...

Thanks, Santa..

If it still is having issues, I'll get my meter out per the RepairClinic youtube video and test for continuity in ice water... :)

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Yep, it's working now....

I learn something new everyday thanks to you guys :) Time to clean the freezer while it's apart and reassemble!

Thanks!!

post-46276-0-08128800-1327063606_thumb.j

Edited by acadiel

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That frost pattern looks a little heavy. Were you running it with the back panel off? Did you let the timer advance into defrost on its own?

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Yes, it ran for a while without the back panel before the defrost timer kicked in.

The temperature appears to be holding again today... hopefully it stays fixed :)

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