Fridge WOES......Again
Hi all, 2008 WW CR3705 with the Dometic RM3862 fridge. I have been balls deep into this fridge several times. The first was the ciruit board. I bought one from dinosaur electronics and it worked we...
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SO I have been messing with this all morning and here is what I found.
I called dinosaur electronics and talked to their tech guy. He ran me through some tests and determined the board to be functioning fine. The board does two things (according to the tech) it basically switches between LP and 110v to either heat the ammonia using LPG or the heating element. After determining this I decided to move on.
I checked some of what old-biscuit suggested but I am stumped because I am getting constant battery voltage (12.5-12.7v) at the back of the fridge and don't understand if this is normal or what he suggested only had to do with 3-way fridges? I tried with the inverter on (which I RARELY run when I am dry camping and it has always worked fine for years)The 12V power block next to the circuit board is wired into the RV system but not regulated by the inverter as far as I can tell.
I tested the thermistor ohms and at 80* ambient it gave me 2500 ohms. I put it in a glass of ice cold water, waited 5 minutes. It went to 6500-6600 ohms. I have read that it has to reach a minimum of 9000 ohms to be considered ok.....but I am not sure.
I called dometic's troubleshooting line and they were as stupid as could be.....directed me to a repair shop.
I looked up in the cavity where the fridge sits and it looks pretty filthy. I considering taking it out and cleaning the back of it just to make sure. By the way there is a fan way up there and to be honest I have never heard it come on.
I called dinosaur electronics and talked to their tech guy. He ran me through some tests and determined the board to be functioning fine. The board does two things (according to the tech) it basically switches between LP and 110v to either heat the ammonia using LPG or the heating element. After determining this I decided to move on.
I checked some of what old-biscuit suggested but I am stumped because I am getting constant battery voltage (12.5-12.7v) at the back of the fridge and don't understand if this is normal or what he suggested only had to do with 3-way fridges? I tried with the inverter on (which I RARELY run when I am dry camping and it has always worked fine for years)The 12V power block next to the circuit board is wired into the RV system but not regulated by the inverter as far as I can tell.
I tested the thermistor ohms and at 80* ambient it gave me 2500 ohms. I put it in a glass of ice cold water, waited 5 minutes. It went to 6500-6600 ohms. I have read that it has to reach a minimum of 9000 ohms to be considered ok.....but I am not sure.
I called dometic's troubleshooting line and they were as stupid as could be.....directed me to a repair shop.
I looked up in the cavity where the fridge sits and it looks pretty filthy. I considering taking it out and cleaning the back of it just to make sure. By the way there is a fan way up there and to be honest I have never heard it come on.
