Dometic RM2310 Service Manual

SERVICE TIPS

Efl Dometic@

MANUAL

REFRIGERATORS

Models

RM2310

RM2510

RM2410

RM2610

RM2452

RM2810 RM2453 RM2552 RM2553

Dometic

Corporation

OS1717

4/96

THE MOST COMMON SYSTEM PROBLEMS ASSOCIATED WITH THE

RM2310,

RM2410,

RM2510, RM2610 , RM2810, RM2452, RM2453, RM2552

AND RM2553 REFRIGERATORS

SYMPTOM

CAUSE

No operation.

2. No electric operation.

No gas operation - no spark.

4. No gas operation

sparks but no flame.

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).

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

Insufficient cooling on all modes.

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 DC- cools properly on AC and gas.

RM251

0/RM261 0/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 (RM261

O/RM2810)

Volts Heating Element Relay (RM261

0/RM2810)

Electrode LP Gas Bypass Screw Filter

REFRIGERATORS WITH

BOTTOM

MOUNT CONTROLS

Refrigerators with Piezo lgnitors (RM2310

RM2410)

ON/OFF Switch B - Thermostat Gas/Electric c - Safety Push-button

D -

Piezo lgnitor

Flame View Port

Refrigerators with Automatic Reigniters (RM251

O/RM261 O/RM2610)

A - ON/OFF Switch B - Thermostat, Gas/Electric c

Safety Push-button

E - Light

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.

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 ther-

mostat 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 tempera-

ture. 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.

OPERATION

REFRIGERATORS WITH TOP MOUNT CONTROLS

REFRIGERATORS WITH PIEZO IGNITORS: RM2452 AND RM2453

LEGEND: A Energy Selector Knob

B Thermostat Knob

C Flame Failure Safety

Valve Push Button D Piezo lgnitor E Flame Indicator

---_-__-----m-------------v-

REFRIGERATORS WITH AUTOMATIC IGNITION: RM2552 AND RM2553

GAS OPERATION

REFRIGERATORS WITH

PIEZO IGNITOR

(RM2452 & RM2453)

To start the refrigerator, turn knob “A” to the “GAS” position. Turn the thermostat knob

“B”

one-quarter

(1/4)

of a turn from the “OFF” position.

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.

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. 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.

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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