Dometic DM2662 Manuel de service

DIAGNOSTIC SERVICE MANUAL AMERICANA & AMERICANA PLUS RM 2351, RM 2354, RM 2451, RM 2454 RM 2551, RM 2554, RM 2652, RM 2662

9Note: Do not continue to reset GAS operation if the CHECK indicator lamp continues to be illuminated after several tries. Move the AUT

10SECTION 3 AC COMPONENTSHeating ElementThe heating element is designed to deliver a predeter-mined amount of heat to the cooling unit. To che

11SECTION 5 DC COMPONENTS5.1 DC Heating ElementRemove the heater leads from the lower circuit board or relay and measure for proper resistance across

12This insures that the ame will always be lit when de-sired. First verify proper voltage at the positive (Yellow +) and ground (Bla

13Wires from control board P3 harness to relay. Terminal 85 P3-3 harness blue negative. Terminal 86 P3-4 h

14WIRING ORIGINAL STYLE CONTROL 3 / 2 WAY, 2 WAY WILL NOT HAVE A J1 TO DC HEATER

15J1J2J3J4J5J6J7J8J9J10BBLACKBROWNREDORANGEGREENCWHITEWHITET767612 3NL+-12V DCL42122ACIRCUIT BOARD POWER MODULECIRCUIT BOARD DISPLAYBCTHERMISTORGAS VA

16WIRING INTERGRATED IGNITER CONTROL Part number 3850712013

17Lower Board TestingALL TESTS ARE TO BE DONE WITH THE RE-FRIGERATOR IN THE COOLING MODE.Unplug the thermistor from the control board during lower boa

185.11 Climate Control Heater & Switch5.12 Low Ambient SwitchAfter the check, be sure the switch assembly is wired properly per the wirin

1SAFETY INSTRUCTIONSThis manual has safety information and instruc-tions to help users eliminate or reduce the risk of accidents and injuries.RECOGNIZ

19SECTION 6 LP GAS REQUIREMENTSThe LP gas pressure to the refrigerator should be 11 inch-es water column with half of all BTU’s of the RV turned on. W

207.3 Thermocouple7.4 Burner7.5 Flue Bafe7.6 Flue CapThe Thermocouple is a component that extends over the burner assembly so its tip is in th

21SECTION 8 COOLING UNIT8.1 LevelingLeveling is one of the requirements for proper operation of absorption refrigerators. The absorption design utiliz

22Typical Two Side Wall Vent Application. Always Refer To Vent Instructions 3308666.xxx

238.3 Air LeaksCheck the gasket on the doors to be sure of a positive air seal. A simple method to check gaskets is to close the d

248.5 Door PositionIf the upper or lower door is closing too high or low against the frame, cold air leakage can occur. Adding or deleting a at thin

25

268.7 Cooling UnitThe cooling unit is a self-contained, hermetically sealed set of coils where the refrigeration process takes place. The chemicals

27When the ice maker thermostat senses the preset tem-perature for ejection of the ice cubes, the ngers will start to rotate, dumping any ice cub

2810.7 Timing MotorThis is a low-wattage, stall-type motor which is geared to the timing cam and ice ejector. It is a one RPM motor. To check the moto

2PAGE NO.DIAGNOSTIC FLOW CHART... 4CONTENTSSECTION 1OPERATION Refrigerat

29This is an energized circuit. Shock can occur if not tested properly. Testing is to be done by a qualied service technician.10.11 Water SupplyTo

30ICE MAKER TYPICAL WIRING DIAGRAM

31After a few degrees of motor rota-tion, the timing cam switches the holding switch to its normally open position; this assures completi

32Some time during the second revolu-tion the mold heater resets the ther-mostat. at this time, the mold heater is de-energized. If the storage bin is

33The ejection cycle ends the mo-ment that the holding switch is closed by the timing cam. The water valve switch is also opened. If the

3PAGE NO.CONTENTSSECTION 7 7.5 Flue Bafe...20

4SYMPTOM1. No operation - no panel lights2. No operation - has panel lights3. No AC operation - operates on gas mode4. No Gas operation - operate

5SYMPTOM9. Check light on10. Interior light on when door is closed11. Rapid formation of frost12. Water on frameSECTION & PAGE4, page 109, pa

6AMERICANA 2-WAY MODEL1. Main Power Button ON/OFF2. AUTO/GAS Mode Selector ButtonA. AUTO Mode indicator lampB. CHECK indicator lamp (Gas Mode

7Travel LatchRM2354RM2454 & RM2554 DISPLAY PANEL RM2354, RM2454, RM2554 RM2663 3-wayDISPLAY PANEL RM2662, RM2862 2-WAY3-WAY1. Main Power Button ON

8Most LP gas appliances used in recreation-al vehicles are vented to the outside of the vehicle. When parked close to a gasoline pump, it is pos