Gas Mode - Dometic S1521 Service Tips Manual

AMES REFRIGERATOR OPERATION
ON
1
OFF
A
ON
1
OFF
B
MODELS INCLUDE: S1521, S1531, S1621, S1631, S1821, S1831, RM2607, RM2611, RM2807, RM2811
AUTO MODE
When operating in the AUTO mode, the AUTO mode indicator lamp (D) will illuminate. The control
system will automatically select between AC and GAS operation with AC having priority over GAS.
Either the AC indicator lamp (B) or the GAS indicator lamp (C) will illuminate depending on the energy
source selected by the control system. If the control system is operating with AC energy and it then
becomes unavailable, the system will automatically switch to GAS. As soon as AC becomes available
again, the control will switch back to AC regardless of the status of GAS operation.

GAS MODE

When operating in the GAS mode, the AUTO mode indicator lamp (D) will not be illuminated. This mode
provides LP gas operation only. The control system will activate the ignition system and will attempt to
light the burner for a period of approximately 45 seconds. If unsuccessful, the CHECK indicator lamp (E)
will illuminate and the GAS mode indicator lamp (C) will turn off.
To restart GAS operation, press the main power ON/OFF button (1) to the OFF and then ON position.
The control system will attempt a new 45 second ignition sequence. If the refrigerator has not been used
for a long time or the LP tanks have just been refilled, air may be trapped in the supply lines. To purge
the air from the lines may require resetting the main power ON/OFF button (1) three or four times. If
repeated attempts fail to start the LP gas operation, check to make sure that the LP gas
supply tanks are not empty and all manual shutoff valves in the lines are open.
If the control is switched to AC or DC operation while the CHECK indicator lamp is on, it will function
properly, but the CHECK indicator lamp will not go off until the main power ON/OFF button is pressed to
the OFF then ON position.
4
2-WAY DISPLAY PANEL
D
AUTO
2
AC GAS
B C
3-WAY DISPLAY PANEL
D
DC AUTO
2 3
AC GAS
C
CHECK COLD 1 2 3 4 5
E
CHECK
COLD 1 2 3 4 5
E
COLDEST
3
F
COLDEST
4
F