8
DIAGNOSTIC SERVICE MANUAL
Dometic
®
RM2604/2804
Refrigerators
adequate capacity to avoid voltage drop. The wire
gauge should be chosen with consideration to the
wire length in accordance with the following table.
MAXIMUM TOTAL CONDUCTOR WIRE LENGTH IN FEET
AWG RM2604 RM2804 Int. Light Only
10 17 17 55
8272785
Do not use the body or chassis of the vehicle as a
substitute for either of the two conductors. No other
electrical equipment or lighting should be connected to
the refrigerator circuit. The refrigerator will draw 18 amps
at 12 volts DC.
DO NOT OPERATE THE REFRIGERATOR ON 12-
VOLT WHEN THE VEHICLE IS PARKED. THE CUS-
TOMER WILL RUN OUT OF BATTERY IN A RATHER
SHORT TIME. IF POSSIBLE, THE INSTALLATION OF
A 12-VOLT OPERATED REFRIGERATOR SHOULD
BE COMPLETED WITH A RELAY MOUNTED EITHER
IN THE TOW VEHICLE OR IN THE RECREATIONAL
VEHICLE. THIS RELAY WILL AUTOMATICALLY CUT
OUT THE REFRIGERATOR WHEN THE MOTOR IS
STOPPED.
SWITCH KEY
RELAY
BATTERY
(RV)
BREAKER
POINT
IGNITION
COIL
BATTERY
12V DC
HEATER
REIGNTER A ND
INTERIOR L IGHT
4a
2
GH
1
120 VOLTS A C
E
K4
1
1
2
1
F
4
1
2
D
I
J
1
1
C
2
3
1
N
L
120 VOLTS A C
WHITE
BLACK
GREEN
GREEN/YELLOW
SWITCH
THERMOSTAT
TERMINAL BL OCK
TERMINAL BL OCK
HEATER
REIGNITER
LAMP
DOOR SW ITCH
INDICATION L AMP
TERMINAL ST RIP
ABSORPTION UNIT
BRACKET
1
A
C
E
G
I
K
B
D
F
H
J
L
2
3
4
22
L
4
12 VOLTS DC
REIGNITER
LAMP
7
4
2
1
A
4
C
2
B
7a
2a
1a
12 VOLTS DC
G
H
74
A
7a 4a
F
I
120 VOLTS A C
E
C
A
1
2
2a 1a
B
D
N
L
RM2604 & RM2804 2-WAY 120 VOLTS
7.2 INTERNAL WIRING
Check all wires and the connectors to ensure a proper
and tight connection. Also verify the refrigerator is wired
per the wiring diagram for the model you are working on.
(See wiring diagram below and on the next page.)
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