Dometic service manual RM7030 Product No & RM7732

Page 19

DOMETIC® RM7030/RM7732 Refrigerators

DIAGNOSTIC SERVICE MANUAL

B.AC OPERATION

THESE PROCEDURES MUST BE FOLLOWED IN SEQUENCE AND AT THE PROPER TERMINALS OR DAMAGE TO THE BOARD WILL RESULT.

For AC heating element operation, check that voltage is present between the large black and large white wire at the circuit board. If voltage is below 100 volts, the circuit board will select another mode. If voltage is above 100 volts, check that AC volts are present at the heating element connection. If no voltage is present, change the circuit board.

NOTE: Before installing a new circuit board, correct the cause of the failure, most likely it is the heating ele- ments or wiring.

If voltage is present, DO NOT CHANGE THE CIRCUIT BOARD. Check the following components: heating elements, upper circuit board, thermostat and wiring.

C.GAS OPERATION

THESE PROCEDURES MUST BE FOLLOWED IN SEQUENCE AND AT THE PROPER TERMINALS OR DAMAGE TO THE BOARD WILL RESULT.

Before you check the circuit board for gas operation, verify these components are good:

Igniter (Sec 5.5A)

HighVoltageCable(Sec. 5.6A)

Electrode (Sec. 5.11)

Solenoid (Sec. 5.4A)

UpperCircuitBoard(Sec. 5.8A to 5.8I)

Thermostat (Sec. 5.1)

Also be sure NO voltage is present at the

IGN lock terminal, and delay mode is not

YELLOW

 

activated. First, check that voltage in

 

excess of 10.5 volts is between the yellow

 

terminal on the 6-pin connector (positive

 

[+] lead from meter) to the ground strip

 

(negative [–] lead from meter). If less than

 

10.5 volts, correct wiring and/or power

6 Pin

source problem.

 

Next, check for the pulse voltage from the igniter at the orange terminal on the 6-pin connector (negative

[–]lead from meter) and the ground strip (positive [+] lead from meter). If there is no signal voltage, check the igniter (see Sec. 5.5A) and the orange wire and connections. If signal voltage is present, next check

for voltage on the solenoid wires at the

ORANGE

circuit board. Positive lead from meter to

 

the gray wire and negative lead from the

 

meter to the black wire. If voltage is 9.5

 

volts or more, the circuit board is good. Do

 

not replace. If no voltage is present, replace

 

the circuit board.

6 Pin

 

D.DC VOLTS TO UPPER CIRCUIT BOARD

THESE PROCEDURES MUST BE FOLLOWED IN SEQUENCE AND AT THE PROPER TERMINALS OR DAMAGE TO THE BOARD WILL RESULT.

This check is to determine if the

 

 

lower circuit board is providing

BLUE

BROWN

voltage to the upper circuit board.

 

 

Measure between the brown

 

 

terminal on the 10-pin connector

 

 

(positive [+] lead from meter) to

 

 

the blue terminal on the 7-pin

 

 

connector (negative [–] lead from

7 Pin

10 Pin

meter). A voltage reading indi-

 

 

cates the circuit board is good. If

no voltage is present, replace the circuit board. NOTE: Before changing the circuit board, be sure all troubleshooting steps have been followed.

RM7030 (Product No. 921890401) & RM7732

E. DC VOLT: ALL TESTS ARE TO BE DONE WITH THE REFRIGERATOR IN THE COOLING MODE.

Before any checks are made, make sure the board is receiving proper DC volts. Measure volts between terminal J4 and the ground strip. Voltage should be the same as at the positive (+) and negative (-) on the terminal block. If not, check for loose connec- tions.

F. AC MODE: NOTE: The PAL tester will allow for proper testing of the integrity of the upper and lower circuit boards. PAL is available from your Dometic parts distributor.

ALL TESTS ARE TO BE DONE WITH THE REFRIG- ERATOR IN THE COOLING MODE.

For AC heating element operation, check that incoming AC voltage is present at terminals J5 and J6 on the circuit board. If voltage is below 100 volts, see Sec. 2.

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Contents Foreword Contents ICE Maker Components WiringOther ICE MakerRM7030 Refrigerator Section Symptom Cause Refer to Step Refrigerator SectionC,D Symptom Cause Refer to StepSymptom Cause Refer to Step ICE Maker Section LP GAS Operation AES Fully Automatic ModeLP GAS Delay Mode OperationThermostat AES Display Panel AES Mode Volts AC OperationFlame Failure During LP GAS Operation LOW Voltage MonitorRM7732 Refrigerator Operation GAS ModeStandby Mode of Operation Auto ModeTo Shut OFF the Refrigerator Description of Operating ModesDC Components AC Voltage RequirementsAccomponents Heating Element DC Voltage RequirementsThermistor Thermistor AdjusterSolenoid Valve High Voltage Cable IgniterFuses ON-OFF SwitchUpper Circuit Board AES Function Lamp AES Function SwitchAC Mode Lamp and Switch GAS Function LampGAS Mode Lamp and Switch Delay Mode Lamp and SwitchGAS Flame Warning Lamp Lower Circuit Board Diagnostic ModeRM7030 Product No & RM7732 Door Switch Test Port LP GAS RequirementsElectrode Climate Control HeaterManual GAS LP GAS ComponentsThermocouple OrificeFlue Baffle WiringInternal Wiring BurnerTypical Wiring Diagram for Volts AC RM7732 Typical Wiring Diagram Other Securing the Refrigerator Cooling Unit Ambient TemperatureDoor Position Smooth FIT, Proper SealInterior Liner Seal to Frame ICE Ejector ICE Maker OperationICE Maker Components Mold HeaterWater Valve Mold SwitchesShutoff ARM Timing MotorICE Maker Assembly Schematics on Pages 32 ThroughDometic RM7030/RM7732 Refrigerators Dometic RM7030/RM7732 Refrigerators ICE Maker Other Water Fill AdjustmentWater Supply ICE Maker Typical Wiring Diagram

RM7030, RM7732 specifications

The Dometic RM7732 and RM7030 are two innovative refrigeration solutions designed for those who enjoy outdoor adventures such as camping, RVing, and boating. These refrigerators are engineered to provide reliable cooling performance while prioritizing energy efficiency and ease of use.

The Dometic RM7732 is a three-way refrigerator that operates on 12V DC, 110V AC, and propane. Its versatility makes it an ideal choice for those who may not always have access to an electric power source. With a capacity of 7.3 cubic feet, it can hold a substantial amount of food and beverages, making it perfect for extended trips. The RM7732 also boasts an impressive temperature range, allowing it to maintain optimal cooling conditions even in varying outdoor temperatures. Its sleek design includes a reversible door, providing flexibility in installation and use.

On the other hand, the Dometic RM7030 is a double-door refrigerator that combines style with functionality. This model also supports three-way operation: propane, 12V DC, and 110V AC. It offers a slightly smaller capacity than the RM7732 but is still equipped to handle the needs of a small family or group. One of its standout features is its efficient absorption cooling technology, which ensures that the refrigerator operates quietly, making it an excellent choice for nighttime use.

Both models feature an electronic ignition system that simplifies the process of starting the propane function. The intuitive control panel on each unit allows users to easily select the preferred power source and adjust the temperature settings. Energy-efficient LED lighting inside the refrigerators enhances visibility while consuming minimal power.

Dometic has incorporated advanced insulation materials in both the RM7732 and RM7030 to reduce energy consumption, ensuring that food stays cooled even under high ambient temperatures. The sturdy construction is designed to withstand the rigors of outdoor use, and the units are built to last.

In summary, the Dometic RM7732 and RM7030 refrigerators are excellent choices for outdoor enthusiasts seeking reliable, versatile, and energy-efficient cooling solutions. With their range of power options, impressive capacities, and user-friendly features, they are well-equipped to handle the demands of any adventure while keeping your provisions fresh and cool.
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