background image

7

DIAGNOSTIC SERVICE MANUAL

DIAGNOSTIC SERVICE MANUAL

DIAGNOSTIC SERVICE MANUAL

DIAGNOSTIC SERVICE MANUAL

DIAGNOSTIC SERVICE MANUAL

Dometic

Dometic

Dometic

Dometic

Dometic

®  

®  

®  

®  

®  

RM3604/3804 AES

RM3604/3804 AES

RM3604/3804 AES

RM3604/3804 AES

RM3604/3804 AES

®

®

®

®

®

Refrigerators

Refrigerators

Refrigerators

Refrigerators

Refrigerators

With the AC/gas function

With the AC/gas function

With the AC/gas function

With the AC/gas function

With the AC/gas function
switch manually depressed

switch manually depressed

switch manually depressed

switch manually depressed

switch manually depressed:
Continuity should be indicated
between the blue terminal on
the 7-pin connector to the blue
terminal on the 10-pin connec-
tor.

With the AC/gas function

With the AC/gas function

With the AC/gas function

With the AC/gas function

With the AC/gas function
switch NOT depressed

switch NOT depressed

switch NOT depressed

switch NOT depressed

switch NOT depressed:
A reading would NOT

NOT

NOT

NOT

NOT be

indicated.

NOTE

NOTE

NOTE

NOTE

NOTE: If the check on the AC/gas function switch is not
correct, verify the wire harness has continuity. If the wire
harness is good, replace the upper circuit board.

5. AC/GAS FUNCTION LAMP (Only on 3-Way Mod-

AC/GAS FUNCTION LAMP (Only on 3-Way Mod-

AC/GAS FUNCTION LAMP (Only on 3-Way Mod-

AC/GAS FUNCTION LAMP (Only on 3-Way Mod-

AC/GAS FUNCTION LAMP (Only on 3-Way Mod-

els)

els)

els)

els)

els):

NOTE

NOTE

NOTE

NOTE

NOTE: The following checks should be made on the
upper circuit board and harness assembly BEFORE
replacing the upper circuit board or wiring harness.
These checks are to be done with the wiring harness
REMOVED from the lower circuit
board and the ON–OFF switch
turned to "ON".

Measure resistance between the
brown terminal on the 10 pin connec-
tor (negative [–] lead from meter) to
the gray terminal on the 10-pin connec-
tor (positive [+] lead from meter). The
proper resistance is approximately
26,000 ohms.

NOTE

NOTE

NOTE

NOTE

NOTE: If the check on AC/gas function lamp is not
correct, verify the wire harness has continuity. If wire
harness is good, replace the upper circuit board.

6.

GAS FUNCTION SWITCH

GAS FUNCTION SWITCH

GAS FUNCTION SWITCH

GAS FUNCTION SWITCH

GAS FUNCTION SWITCH

NOTE

NOTE

NOTE

NOTE

NOTE: The following checks should be made on the
upper circuit board and harness assembly BEFORE
replacing the upper circuit board or wiring harness.
The checks are to be done with the wiring harness
REMOVED from the lower circuit board and the ON-
OFF switch turned to "ON".

With the gas function switch

With the gas function switch

With the gas function switch

With the gas function switch

With the gas function switch
manually depressed

manually depressed

manually depressed

manually depressed

manually depressed: CONTI-
NUITY should be indicated
between the violet terminal on
the 10-pin connector to the blue
terminal on the 7-pin connector.
With the gas function switch

With the gas function switch

With the gas function switch

With the gas function switch

With the gas function switch
NOT depressed:

NOT depressed:

NOT depressed:

NOT depressed:

NOT depressed:
A reading would NOT

NOT

NOT

NOT

NOT be indi-

cated.

NOTE

NOTE

NOTE

NOTE

NOTE: If the check on gas function switch is not

BLUE

BLUE

7 PIN

10 PIN

GRAY

10 Pin

BROWN

7 PIN

10 PIN

VIOLET

BLUE

correct, verify the wire harness has continuity. If wire
harness is good, replace the upper circuit board.

7. GAS FUNCTION LAMP

GAS FUNCTION LAMP

GAS FUNCTION LAMP

GAS FUNCTION LAMP

GAS FUNCTION LAMP
NOTE

NOTE

NOTE

NOTE

NOTE: The following checks should be made on the
upper circuit board and harness assembly BEFORE
replacing the upper circuit board
or wiring harness. These checks
are to be done with the wiring
harness REMOVED from the
lower circuit board, and the ON–
OFF switch turned to "ON".

Measure resistance between the
brown terminal on the 10-pin
connector (negative [–] lead
from meter) to the white terminal
on the 10-pin connector (posi-
tive [+] lead from meter). The proper ohms resis-
tance is approximately 26,000 ohms.

NOTE

NOTE

NOTE

NOTE

NOTE: If the check on gas function lamp is not
correct, verify the wire harness has continuity. If wire
harness is good, replace the upper circuit board.

8. AC MODE LAMP AND SWITCH

AC MODE LAMP AND SWITCH

AC MODE LAMP AND SWITCH

AC MODE LAMP AND SWITCH

AC MODE LAMP AND SWITCH
NOTE

NOTE

NOTE

NOTE

NOTE: The following checks should be made on the
upper circuit board and harness assembly BEFORE
replacing the upper circuit board or wiring harness.
These checks are to be done with the wiring harness
REMOVED from the lower circuit board, and the ON-
OFF switch turned to "ON".

With the mode switch (?) manually depressed

With the mode switch (?) manually depressed

With the mode switch (?) manually depressed

With the mode switch (?) manually depressed

With the mode switch (?) manually depressed:
Resistance should be
indicated between the
brown terminal on the
10-pin connector
(negative [–] lead from
meter) to the red
terminal on the 7-pin
connector (positive [+]
lead from meter). The
proper resistance is
approximately 26,000
ohms.
With the mode switch (?) NOT depressed

With the mode switch (?) NOT depressed

With the mode switch (?) NOT depressed

With the mode switch (?) NOT depressed

With the mode switch (?) NOT depressed: A
reading would NOT

NOT

NOT

NOT

NOT be indicated.

NOTE

NOTE

NOTE

NOTE

NOTE: If the check on AC mode lamp and switch is
not correct, verify the wire harness has continuity. If
wire harness is good, replace the upper circuit
board.

9. 12-VOLT MODE LAMP & SWITCH (Only on 3-Way

12-VOLT MODE LAMP & SWITCH (Only on 3-Way

12-VOLT MODE LAMP & SWITCH (Only on 3-Way

12-VOLT MODE LAMP & SWITCH (Only on 3-Way

12-VOLT MODE LAMP & SWITCH (Only on 3-Way
Models)

Models)

Models)

Models)

Models)
NOTE

NOTE

NOTE

NOTE

NOTE: The following checks should be made on the
upper circuit board and harness assembly BEFORE
replacing the upper circuit board or wiring harness.
These checks are to be done with the wiring harness
REMOVED from the lower circuit board, and the ON-

WHITE

BROWN

10 PIN

7 PIN

10 PIN

RED

BROWN

Summary of Contents for RM3604

Page 1: ...Foreword 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 c...

Page 2: ...it Board Switch Card 4 1 1 Fuse 9 SECTION 5 LP GAS REQUIREMENTS _ _ 10 SECTION 6 LP GAS COMPONENTS 6 1 Manual Shut Off Valve _ _ _ _ 10 6 2 Orifice 10 6 3 Thermocouple ___ _ _ __ __ _ _ 10 6 4 Burner...

Page 3: ...Upper Circuit Board 4 9 2 12 Circuit Board 4 10 5 AC Volts 1 Heating Element 2 Upper Circuit Board 4 9 2 5 Wiring 7 2 Thermostat 4 2 Circuit Board 4 10 2 DC Volts 3 1 Heating Element 4 1 Upper Circuit...

Page 4: ...14 Flame failure light after 3 minutes 15 Interior Light ON when door is closed 16 Rapid formation of frost AC Volts 1 Heating Element 2 DC Volts 3 Heating Element 4 1 Wiring 7 2 LP gas 5 1 Orifice 6...

Page 5: ...Maximum fuse size 25 amp for RM3604 and RM3804 3 PRONG PLUG FOR 120V AC FUSE LINK 3AMP MANUAL GAS SHUTOFF VALVE IGN LOCK COVER TERMINAL BLOCK With the refrigerator operating on AC or gas mode if volta...

Page 6: ...With the igniter producing spark connect meter leads to L and ground terminals on the igniter with the meter set on 20 volts DC range or lower The meter should read a pulsating voltage If not replace...

Page 7: ...ld be off When the refrigerator door is open the switch is closed interior light should be on Check that the switch assembly is properly aligned and that it is not broken Check the switch assembly for...

Page 8: ...turned to ON With the AES function switch manually With the AES function switch manually With the AES function switch manually With the AES function switch manually With the AES function switch manual...

Page 9: ...ion switch With the gas function switch With the gas function switch With the gas function switch With the gas function switch NOT depressed NOT depressed NOT depressed NOT depressed NOT depressed A r...

Page 10: ...amp and Switch NOTE The following checks should be made on the upper circuit board and harness assembly BEFORE replacing the upper circuit board or wiring harness The checks are to be done with the wi...

Page 11: ...from meter If no voltage is present replace the circuit board If voltage is present the circuit board is NOT defective do not replace BLACK 6 Pin RED 6 Pin 4 THESE PROCEDURES MUST BE FOLLOWED IN SEQUE...

Page 12: ...for a few moments while depressing the safety valve Remove the flame and release the safety valve The valve should hold for at least 30 seconds If it does not hold the safety valve open for 30 second...

Page 13: ...te capacity to avoid voltage drop The wire gauge should be chosen with consideration to the wire length in accordance with the Table below MAXIMUM CONDUCTOR WIRE LENGTH IN FEET MAXIMUM CONDUCTOR WIRE...

Page 14: ...F CIRCUIT BOARD TERMINALBLOCK HEATER CONNECTOR MAIN SWITCH DOOR SWITCH LIGHT THERMOSTAT GAS VALVE COIL THERMOCOUPLE REIGNITER TIME FUSE 3 3 15 AMP GAS FLAME WARN LAMP GAS FUNCTION SWITCH GAS FUNCTION...

Page 15: ...eve proper air flow All potential dead air pockets should be blocked or baffled to insure that heat won t be trapped in these spaces and reduce efficiency In addition the cooling unit should be at lea...

Page 16: ...tainers of water Next supply 115 volts direct to the AC heating element and operate for at least 12 hours Then check the temperature on the thermometer It should be at 45 degrees or lower depending on...

Reviews: