Dometic RM3962 user manual Diagnostic test, Test function Test indication Test result indication

troubleshooting & diagnostic test

Diagnostic test

This section is intended for service personnel.

To perform a diagnostic test:

1. Turn off the refrigerator. (Press the ON/OFF button.)

2. Press and hold the TEMP. SET button and then, press the ON/OFF button.

3. Release the TEMP. SET button. Press it again to toggle the list of functions step by step.

For information about test functions and indications, refer to the following table.

The messages are displayed flashing - alternating between “Test indication” and “Test result indication”.

No	Test function	Test indication	Test result indication
1	All outputs off	F	E 0	➛		Communication fault
			E 2	➛		Temperature sensor fault
			“Unfiltered temperature in F”
2	Turn LAC heater on	L H	E 0		➛	Communication fault
			O N		➛	LAC heater on
						Press the lamp switch. The lamp should still be on.
3	Turn AC heater on	A C	E 0		➛	Communication fault
			O N		➛	AC heater on
			“	”	➛	AC heater off, AC not available
4	D+ status (if D+ is connected)	d P	E 0		➛ Communication fault
	Not available on all models		O N		➛	D+ high
			“	” ➛		D+ low
5	Run gas	L P	E 0		➛	Communication fault
	(one attempt only)		E 1		➛	Igniter and valve off, gas hardware fault
			O N		➛	Igniter and valve on
			F L		➛	Igniter off and valve on, flame detected
			“	”	➛	Igniter and valve off, gas problem (check gas)
						(If flame is not ignited within 45 seconds)

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