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Member Since 16 Aug 2013
Offline Last Active Oct 28 2013 04:49 PM

Posts I've Made

In Topic: Look at my Evaporator, Please

17 August 2013 - 07:27 PM

I just wanted to say thanks for the helpful insights. On closer inspection, the evap is EXACTLY ikkö-ikki described, lots of tiny erupting volcanos. I decided to charge to see what I could achieve.


The odd thing is my low pressure gauge read -25 psi on the outlet when running. By adding 134a I was only able to get it up to about -15psi. The Subzero specs said it should run at 10-20 psi low pressure side. I did not get near to this and it was no longer pulling much gas. However, by this point I had a frosted evaporator and my 12 oz. can of 134a seemed about half gone. (The specs also said it holds 6 oz.) So, I decided to err on the side of caution. It cooled quikcly to preset temps.


Of course, I know from you guys this is a temporory solution not a fix.


At least I learned a little and know that the unit is otherwise good, not a failing compressor, fans or thermistors. So, if (when) it fails again I will invest in trying to have the evap replaced. Thanks again for the advice and education.

In Topic: Look at my Evaporator, Please

16 August 2013 - 05:03 PM

You guys have some good eyes. Can you please direct to where am I looking for these dimples, just for my own education?


I think an evap replacement will be beyond my skill. Thanks again, Jeffery

In Topic: Look at my Evaporator, Please

16 August 2013 - 10:57 AM

Good advice. I will fill to pressure first then look for a possible leak. Maybe it will be in a place where I can attempt to repair in the future.


Thank you both very very much. I'll post results.

In Topic: Look at my Evaporator, Please

16 August 2013 - 09:53 AM

Thanks very much, Kurtius. I was afraid of that.


I will dish soap the evaporator while running and try to see if I can find a large or small leak. It has taken 16 years to get this low. I'd be happy if it will get me by until I can purchase a full-size fridge.


The troubleshoot guide states "Check sealed system operating pressures. If low side and high side pressures are low, locate leak, flush system and repair or replace part. If leak is on low side, replace compressor and drier also." Pretty much what you said. The pressure specs say low should be 10-20 at 70˚.


Do you know if I still need to insert a saddle valve, or can I put my low pressure gauge on the factory schrader, see if it draws vac, and slowly charge R134a gas into there until I achieve correct pressure? Thanks again.

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