Dometic RM2510, RM2552, RM2610, RM2453, RM2452 SERVICE TIPS
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THE MOST COMMON SYSTEM PROBLEMS ASSOCIATED WITH THE RM2310, RM2410, RM2510, RM2610 , RM2810, RM2452, RM2453, RM2552 AND RM2553 REFRIGERATORS
SYMPTOM
1.No operation.
2.No electric operation.
3.No gas operation - no spark.
4.No gas operation - sparks but no flame.
5.No cooling on any mode.
6.No cooling on gas - cools properly on other mode(s).
7.No cooling on electric - cools properly on other mode(s).
CAUSE
Operation
Wiring
Switch
Operation
AC Volts
Heating Element
Thermostat
Switch
Wiring
Operation
DC Volts
Igniter
Electrode
High Voltage Cable
Switch
Wiring
Operation
LP gas
Filter
Orifice
Burner
Shut-off Valve
Safety Valve
Thermocouple
Thermocouple Adapter,
(Top Mount Controls Only)
Operation
Level
Ambient Temperature
Cooling Unit
LP Gas
Thermostat
Filter
Orifice
Burner
Flue Baffle
Flue Tube
AC Volts
Heating Element
Thermostat
Switch
Wiring
SYMPTOM
8.Insufficient cooling on all modes.
9.Insufficient cooling on electric - cools properly on other mode(s).
10.Insufficient cooling on gas. Cools properly on other mode(s).
11.Freezes on electric - cools properly on other mode(s).
12.Freezes on gas - cools properly on other mode(s).
13.Won’t stay lit on gas.
14.Rapid formation of frost.
15.No DC operation - cools properly on AC and gas.
16.Insufficient cooling on DCcools properly on AC and gas.
RM2510/RM2610/RM2810
17.On gas mode, sparks while flame is lit.
CAUSE
Operation
Level
Ventilation
Ambient Temperature
Air Leaks
Thermostat
Cooling Unit
AC Volts
Heating Elements
Thermostat
LP Gas Pressure
Thermostat
Filter
Orifice
Burner
Flue Baffle
Flue Tube
Thermostat
Wiring
Bypass Screw
Thermostat
LP Gas
Safety Valve
Thermocouple
Thermocouple Adapter,
(Top Mount Controls Only)
Flame Failure Meter
(Top Mount Controls Only)
Flue Baffle
Flue Cap (Bottom Mount
Controls Only)
Orifice
Burner
Food Storage
Air Leaks
Interior Liner Seal to Frame
High Humidity
DC Volts
Heating Element
Switch
Wiring
Relay (RM261O/RM2810)
DC Volts
Heating Element
Relay (RM2610/RM2810)
Electrode
LP Gas
Bypass Screw
Filter
REFRIGERATORS WITH BOTTOM MOUNT CONTROLS
Refrigerators with Piezo lgnitors |
Refrigerators with Automatic Reigniters |
||||
(RM2310 & RM2410) |
(RM251O/RM261O/RM2610) |
||||
A |
- |
ON/OFF Switch |
A |
- |
ON/OFF Switch |
B |
- |
Thermostat Gas/Electric |
B |
- |
Thermostat, Gas/Electric |
c |
- |
Safety Push-button |
c |
- |
Safety Push-button |
D - |
|
Piezo lgnitor |
E |
- |
Light |
E |
- |
Flame View Port |
|
|
|
GAS OPERATION
Refrigerators with Piezo lgnitor (RM2310 & RM2410)
To start the refrigerator, turn knob “A” to the “GAS” position.
Turn the thermostat knob “B”one-quarter (l/4) of a turn from the “OFF” position.
Push button “C”in until it bottoms out-and hold. While holding button “C”, push button “D”for the piezo ignitor several times to light the burner. This can be observed through the flame view port, “E”, on the refrigerator.
After the flame lights, continue to hold button “C”for an additional fifteen (15) seconds. Release the button “C”and check the flame view port “E” to make sure the burner does not go out. If the burner goes out, repeat the lighting procedure.
To shut off the refrigerator, turn Knob “A” to the “OFF” position.
Refrigerators with Automatic Reigniters (RM2510/RM2610/RM2810)
To start the refrigerator, turn knob “A” to the “GAS” position.
Turn the thermostat knob “6”one-quarter (l/4) of a turn from the “OFF” position.
Push button “C”in until it bottoms out-and hold. When lamp “E” stops flashing, hold push-button “C” an additional 15 seconds. Release button “C”. If the lamp “E” starts to flash again, repeat lighting procedure. If flame blows out, the reigniter will automatically relight the flame.
4
NOTE: After changing an LP tank, or after a long shut off period, the gas line is likely to be filled with air. You may have to repeat the lighting procedure several times to purge the air out of the gas lines.
ELECTRIC OPERATION
Check to be sure the power cord is properly connected to the power supply. If the refrigerator is equipped for 12 volt DC operation, the tow vehicle engine should be running to prevent discharging the battery.
Turn knob “A” to the position marked “ELEC” for 120 volt AC operation or “12V”for 12 volt DC operation.
Turn the thermostat knob “B”one-quarter (l/4) of a turn from the “OFF” position.
To shut off the refrigerator, turn knob “A” to the “OFF” position.
THERMOSTAT
The refrigerator is equipped with a thermostat that can be adjusted by turning knob “B”to a different setting to maintain the desired cabinet temperature.
“OFF” Setting of the Thermostat: In gas operation, the thermostat closes its main valve and the burner runs continuously at the bypass rate or pilot. In electrical operation, the contacts in the thermostat are open and the heating elements are off.
“MAX” Setting of the Thermostat: In gas operation, the thermostat allows the burner to remain on high flame continuously. In electric operation, the heating element is “ON” continuously.
The thermostat can be adjusted between “MAX” and “OFF” to obtain the desired cabinet temperature. The closer the knob is to “MAX”, the colder the cabinet temperature. The closer the knob is to “OFF”, the warmer the cabinet temperature.
When the thermostat reaches the set temperature, it will cut the burner back to bypass or, in electric operation, shut off the heating element.
GAS OPERATION
REFRIGERATORS WITH PIEZO IGNITOR (RM2452 & RM2453)
1.To start the refrigerator, turn knob “A” to the “GAS” position.
2.Turn the thermostat knob “B”one-quarter (1/4) of a turn from the “OFF” position.
3.Push button “C”, push button “D”for the piezo ignitor several times to light the burner. This can be observed on the flame indicator “E”,on the refrigerator.
4.After the flame lights, continue to hold button “C”for an additional ten (10) seconds. Release the button “C”and check the flame indicator “E”to make sure the burner does not go out. If the burner goes out, repeat the lighting procedure.
5.To shut off the refrigerator, turn knob “A” to the “OFF” position.
REFRIGERATORS WITH AUTOMATIC REIGNITERS (RM2552 AND RM2553)
1.To start the refrigerator, turn knob “A” to the “GAS” position.
2.Turn the thermostat knob “B”one-quarter (l/4) of a turn from the “OFF” position.
3.Push button “C”in until it bottoms out - and hold. When flame indicator “E”shows the flame is on, hold push button “C”an additional 15 seconds. Release button “C”. If the flame indicator “E”starts to move toward off, repeat lighting procedure. Should flame blow out, the reigniter will automatically relight the flame.
NOTE: After changing an LP tank, or after a long shut-off period, the gas line is likely to be filled with air. You may have to repeat the lighting procedure several times to purge the air out of the gas lines.
ELECTRIC OPERATION
Check to be sure the power cord is properly connected to the power supply. If the refrigerator is equipped for 12 volt DC operation, the tow vehicle or caravan engine should be running to prevent discharging the battery. Turn knob “A” to the position marked “ELEC”for 120 volt AC operation or “12V”for 12 volt DC operation.
Turn the thermostat knob “9”one-quarter (l/4) of a turn from the “OFF” position. To shut off the refrigerator, turn knob “A” to the “OFF” position.
THERMOSTAT
The refrigerator is equipped with a thermostat that can be adjusted by turning knob “9”to a different setting to maintain the desired cabinet temperature.
“OFF”Setting of the Thermostat: In gas operation, the thermostat closes its main valve and the burner runs continuously at the bypass rate or pilot. In electrical operation, the contacts in the thermostat are open and the heating elements are off.
“MAX” Setting of the Thermostat: In gas operation, the thermostat allows the burner to remain on high flame continuously. In electric operation, the heating element is “ON” continuously.
The thermostat can be adjusted between “MAX” and “OFF” to obtain the desired cabinet temperature. The closer the knob is to “MAX”, the colder the cabinet temperature. The closer the knob is to “OFF”, the warmer the cabinet temperature.
When the thermostat reaches the set temperature, it will cut the burner back to bypass or, in electric operation, shut off the heating element.
The setting of the thermostat is not critical, but we recommend it be adjusted to maintain a dry frost on the cooling fins. Adjust the thermostat knob closer to “MAX” when the outside temperature becomes warm.
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