Dometic RM2150 Series, RM2190 Series, RM2201 Series Service Manual
Foreword
This service manual is the result of the
dedication of The
Dometic
Corporation and
its engineers in giving service people the
necessary instruction for making accurate
analyses of certain conditions. Provided is
a diagnostic chart leading a qualified
mechanic into the service manual pages to
locate and solve symptoms which may
occur.
Dometic
has continued its
commitment in providing service people
with this, the most up-to-date information
about servicing
Dometic
RV accessories.
OS1
698 5/94
CONTENTS
PAGE NO.
RM2150,2190,2201 SERIES DIAGNOSTIC FLOW CHART
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
SECTION 1
OPERATION
1
.1
RM2150
Operation
........................................................................
3
1.2
RM2190
Operation
........................................................................
4
1.3
RM2201
Operation
.......................................................................
5
SECTION 2
AC VOLTAGE
AC VOLTAGE REQUIREMENTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
SECTION 3
AC COMPONENTS
3.
Heating Element
(RM2201)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
SECTION 4
DC VOLTAGE
DC VOLTAGE REQUIREMENTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
SECTION 5
DC COMPONENTS
5.1 Switch
............................................................................................
5.2
Piezo
igniter
...................................................................................
:
5.3 Electrode
.......................................................................................
5.4 Heating Element
............................................................................
t
5.5 Thermostat (RM2201)
..................................................................
7
SECTION 6
LP GAS
LP GAS REQUIREMENTS ,.................................................................... 7
SECTION 7
LP GAS COMPONENTS
7.1
Shut-Off
Valve..............................................................................
7
7.2 Filter
...............................................................................................
7
7.3 Thermostat
....................................................................................
7.4 Safety Valve
..................................................................................
t
7.5
Thermocouple
7.6 Burner
............................................................................................................................................................................
t
7.7 Flue Baffle
.....................................................................................
7.8 Crossover Tube
.............................................................................
!z
7.9 Flue Tube
......................................................................................
7.10 Orifice
............................................................................................
x
SECTION 8
WIRING
8.1 External Wiring
..............................................................................
9
8.2
InternalWiring
..............................................................................
9
SECTION 9
OTHER
9.1
Leveling
.......................................................................................
10
9.2
Ventilation
....................................................................................
10
9.3
AirLeaks..
....................................................................................
11
9.4
Door
Position
...............................................................................
11
9.5
Ambient
Coolin
Temperature
..................................................................
11
9.6
Unit
.................................................................................
11
9.7
Food!ztora
d
e
...............................................................................
11
9.8
HighHumi
ityy
..............................................................................
11
9.9
Interior Liner Seal to
Frame..
.......................................................
11
This program will address the most common system problems associated with the
RM2150/2190/2201
Manual
Refrigerators supplied by The
Dometic
Corporation. Our intent is to provide you with a guideline of checks to make,
should you encounter one of the following symptoms.
REFER
SYMPTOM
CAUSE
SECTION
STEP
1. No AC operation, (RM2201)
Operation
1.3
AC Volts
2
Heating Element
3
Thermostat
5.5
Switch
5.1
B
Wiring 8.2
2.
No gas operation - no spark.
Operation 1.1,1.2,1.3
Piezo Igniter 5.2
Electrode
5.3
Switch
5.1
A or B
Wiring
8.2
3.
No gas operation - sparks but no flame. Operation
1.1,1.2,1.3
LP gas
6
Filter
7.2
Orifice 7.10
Burner
7.6
Shut-off Valve
7.1
Safety Valve 7.4
Thermocouple
7.5
4.
No cooling on any mode.
Operation
1
.1 ,1.2,1.3
Ventilation
9.2
Level
9.1
Ambient Temperature
9.5
Cooling Unit
9.6
5.
No cooling on gas - cools properly on other
LP Gas
6
mode(s).
Thermostat
7.3
Filter
7.2
Orifice 7.10
Burner
7.6
Flue Baffle
7.7
Flue Tube
7.9
6.
No cooling on AC - cools properly on other
AC Volts
2
mode(s). (RM2201)
Heating Element
3
Thermostat
5.5
Switch
5.1
A or B
Wiring
8.2
7.
Insufficient cooling on all modes.
Operation
1.1,1.2,1.3
Level
9.1
Ventilation
9.2
Ambient Temperature
9.5
Air Leaks
9.3
Thermostat
7.3
Thermostat (RM2201)
5.5
Cooling Unit
9.6
REFER
SYMPTOM
CAUSE
SECTION
STEP
8.
Insufficient cooling on AC - cools
AC Volts
2
properly on other mode(s). (RM2201)
Heating Element
3
Thermostat
5.5
9.
Insufficient cooling on gas.
LP Gas Pressure
6
Cools properly on other mode(s).
Thermostat
7.3
Filter
7.2
Orifice
7.10
Burner
7.6
Flue Baffle
7.7
Flue Tube
7.9
10.
Won’t stay lit on gas.
LP Gas
6
Safety Valve
7.4
Thermocouple
7.5
Flue Baffle
7.7
Crossover Tube
7.8
Orifice
7.10
Burner
7.6
11.
No DC operation - cools properly on
DC Volts
4
other mode(s).
Heating Element
5.4
Switch
5.1
A or B
Wiring
8.2
12.
Insufficient cooling on DC- cools properly
DC Volts
4
on other mode(s).
Heating Element
5.4
2
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