"D" SHAPED
DRIVE END
MOLDHEATER (Staked in Place)

DIAGNOSTIC SERVICE MANUAL

DOMETIC® RM7030/RM7732 Refrigerators

SECTION 10

ICE MAKER OPERATION

The refrigerator must be allowed to precool properly before starting the ice maker. The refrigerator has to be connected to 120 volts AC before the ice maker can operate. The water line manual shutoff valve must be open. To start making ice, move the ice level bail arm to DOWN position.

ICELEVEL

BAIL ARM

DOWNPOSITION

When the ice maker thermostat senses the preset temperature for ejection of the ice cubes, the fingers will start to rotate – dumping any ice cubes and filling the mold with water.

When the storage container is full of ice, the ice level bail arm can not return to the DOWN position. This will stop further production of ice until the container is emptied and the bail arm is returned to the down position.

The absorption system will keep the compartment at the proper temperature for storage of ice. Ice making is accelerated if the thermostat is set to the coldest position. It is a good idea to do this a few hours before you anticipate a need for ice.

NOTE: IF THE ICE MAKER WAS CLEANED AND DRAINED, NO ICE CUBES WILL BE DUMPED INTO THE STORAGE CONTAINER DURING THE FIRST CYCLE.

The first few cycles may have small cubes due to air trapped in the water lines. The first container of ice cubes should be dumped if the water system has been winterized or not used for several weeks.

SECTION 11

ICE MAKER COMPONENTS

11.1 MOLD HEATER

The mold heater uses 165 watts to thaw the ice free from the mold. It is wired in series with the thermostat which also acts as a

safety device. With power to the appli- ance off, check for resistance be- tween the two leads to the heater element. You should obtain a reading of

approximately 80 ohms. If the heater is found to be defective, the manufacturer recommends replacement of the entire ice making unit for proper operation.

11.2 ICE EJECTOR

The ice ejector blades sweep the ice from the mold cavities during the ejection cycle.

The drive end of the ejector is "D" shaped for positive coupling. The bearings at both ends are lubricated

with silicone grease. If the ejector blades are frozen into the ice, defrost the ice maker and manually cycle the ice making unit, making sure the ejector stops at the right location.

11.3 MOLD THERMOSTAT

This is a single-pole, single-throw, bimetal switch. It starts an ejection cycle by closing at 18ºF ± 5º. The reset temperature is 50ºF ± 5º. The thermostat is in series with the mold heater and acts as a safety against overheating in case of a mechanical failure. If the thermostat is defective, replace it.

THERMOSTAT

CLAMP

29

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Dometic RM7732, RM7030 service manual ICE Maker Operation, ICE Maker Components, Mold Heater, ICE Ejector, Mold Thermostat
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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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