Dometic RM2852 fridge wont stay lit ?
Hello All, It's been a LOOOooonnnnggg time since I've been around here, but Open Roads Forum has always been my "Go-To" place when I need to get knowledgeable experienced advise... so here I am. I...
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Wrong again. You test the thermocouple with it connected to the circuit board. From the manual I linked above:
THERMOCOUPLE . .
The thermocouple should produce 25 to 35 millivolts when connected to the lower circuit board. Any
reading below 18 millivolts could cause erratic gas operation.
To check the flame sense circuit of the lower circuit board, measure the millivolts between J3 terminal
and the other wire connection from the thermocouple. The millivolt meter should read between 25
to 35 millivolts with the gas flame burning. Turn the manual shutoff valve to OFF and watch the
millivolt reading as it drops. Note the millivolt reading when Plug 3, terminal 4 (blue wire) receives
power. It should be 10 plus or minus 3 millivolts or 7 to 13.
THERMOCOUPLE . .
The thermocouple should produce 25 to 35 millivolts when connected to the lower circuit board. Any
reading below 18 millivolts could cause erratic gas operation.
To check the flame sense circuit of the lower circuit board, measure the millivolts between J3 terminal
and the other wire connection from the thermocouple. The millivolt meter should read between 25
to 35 millivolts with the gas flame burning. Turn the manual shutoff valve to OFF and watch the
millivolt reading as it drops. Note the millivolt reading when Plug 3, terminal 4 (blue wire) receives
power. It should be 10 plus or minus 3 millivolts or 7 to 13.
