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10.4 mold thermostat

This is a single-pole, single-throw, bimetal switch. It starts 

an ejection cycle by closing at 15º F ± 5º. The reset tem-

perature is 50º F ± 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 defec-

tive, replace it. The mold thermostat starts the ice ejection 

cycle. The freezer must be down to proper temperature 

for the mold thermostat to stare the cycle. The cycle can 

be started by turning the large gear clock wise 1/8 to 1/4 

of a turn.

SectIon 10 Ice maKer

10.1 operation

The refrigerator must be allowed to pre-cool before start-

ing 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 (not part of Dometic unit) must 

be open. To start making ice, move the ice level bail arm 

to DOWN position.

When the ice maker mold 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  cannot  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 ac-

celerated 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. 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.

note:  If  tHe  Ice  maKer  WaS  cleaned  and 

draIned,  no  Ice  cuBeS  WIll  Be  dumPed  Into 

tHe Storage contaIner durIng tHe fIrSt feW 

cycleS.

10.2 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 between the two leads to 

the heater element. You should obtain a reading of ap-

proximately 80 ohms +/- 10%. If the heater is found to be 

defective, the manufacturer recommends replacement of 

the entire ice making unit for proper operation.

10.3 Ice ejector

The ice ejector blades sweep the ice from the mold cavi-

ties 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 ejec-

tor stops at the right location.

Содержание RM3962

Страница 1: ...RM 3962 USA SERVICE OFFICE Dometic Corporation 2320 Industrial Parkway Elkhart IN 46516 574 294 2511 CANADA Dometic Distribution 46 Zatonski Unit 3 Brantford Ontario CANADA N3T 5L8 519 720 9578 Form N...

Страница 2: ...dicates a potentially hazard ous situation which if not avoided may result in minor or moderate injury When used without the safety alert symbol indicates a potentially hazardous situation which if no...

Страница 3: ...10 SECTION 5 DC COMPONENTS 5 1 Thermistor 11 5 2 Solenoid Valve 11 5 3 Igniter 11 5 4 High Voltage Cable 12 5 5 Electrode 12 5 6 Control Panel 12 5 7 Climate Control Heater 12 5 8 LED Display Panel 13...

Страница 4: ...ty 21 SECTION 9 WIRING 9 1 Internal Wiring 23 9 2 External Wiring 23 9 3 Wiring Schematics 23 SECTION 10 ERROR CODES 10 1 Codes 23 SECTION 11 DIAGNOSTIC MODE 11 1 Internal Wiring 23 SECTION 12 ICE MAK...

Страница 5: ...9 3 page 10 5 page 13 6 page 16 7 page 16 7 page 17 7 page 17 7 page 17 5 page 13 5 page 12 5 page 14 4 page 10 CAUSE Operation DC Volts Fuse Wiring Control Panel LED Display Board Lower Circuit Board...

Страница 6: ...page 16 5 page 13 5 page 14 section 9 page 23 5 page 15 8 page 21 8 page 21 8 page 20 8 page 21 8 page 20 8 page 20 8 page 21 8 page 20 5 page 12 CAUSE DC Volts Wiring LP Gas Manual Gas Valve Solenoi...

Страница 7: ...AUTO GAS Mode Selector Button Press the button to turn the auto mode on or off 3 TEMP SET Button The thermostat has 5 settings where 1 indicates the warmest and 5 the coldest temperature setting Pres...

Страница 8: ...dication dot is lit AUTO mode and AC operation The AUTO and LP indication dots are lit AUTO mode and GAS operation The LP indication dot is lit Manual gas operation mode Digits E G Fresh food temperat...

Страница 9: ...not continue to reset GAS operation if the CHECK indicator lamp continues to be illuminated after several tries AUTOMATIC ENERGYSELECTORCONTROL SYSTEM The refrigerator is equipped with an automatic en...

Страница 10: ...pproximately 45 sec onds with two minutes purge interval after each trial If unsuccessful the display will flash LP To restart GAS operation press the main power ON OFF button to the OFF and then ON p...

Страница 11: ...ation of the Dometic refrigerator is also depen dent on good clean ground connections Loose or corrod ed ground terminals create a unknown resistance factor that can affect the voltage detected by the...

Страница 12: ...igniter stops sparking The resistance is monitored by the igniter and if for any reason the flame goes out the igniter begins sparking until the burner is lit The resistance between the electrode and...

Страница 13: ...always loosen the screw and move into place never try to move without loosening the screw On newer units the electrode and high voltage cable are in tegrated into one component To acquire the proper...

Страница 14: ...n not used on this model TAG Line J12 Low ambient control J6 AC neutral White J7 AC heater J5 AC Hot Black J8 AC heater J9 Positive wire from thermocouple J10 Negative to Chassis ground at control boa...

Страница 15: ...14 RM3762 RM3962...

Страница 16: ...s depressed interior light should be off When the re frigerator 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 brok...

Страница 17: ...the chart MODEL JET SIZE RM3762 58 RM3962 58 Always check the parts list with the model and product number to assure the right jet size TESTING LP GAS SAFETY SHUTOFF The gas safety shutoff must be tes...

Страница 18: ...aned periodically at least once a year Soak the burner in an alcohol based solvent and allow to air dry If the burner does not have a good ground it can cause erratic gas operation The electrode spark...

Страница 19: ...ile home or recreational vehicle Openings for air supply or for venting of combustion products shall have a minimum dimension of not less than 1 4 inch Ventilation is a critical requirement for proper...

Страница 20: ...19 Typical Two Side Wall Vent Application Always Refer To Vent Instructions 3308666 xxx...

Страница 21: ...f this happens condensation could form on the frame and could promote rapid formation of frost If you suspect an improper seal apply a small bead of silicone all the way around the perimeter where the...

Страница 22: ...conditions If so the cooling unit is good If the temperature of the water is above 43 degrees replace the cooling unit The outside temperature will affect the cooling capacity of the unit There is tha...

Страница 23: ...22...

Страница 24: ...communication between display and power modules The control system will revert to full automatic operation selecting the best energy source available with AC GAS priority The temperature setting will...

Страница 25: ...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 ac celerated if the thermostat is set to the coldest po...

Страница 26: ...l type motor which is geared to the timing cam and ice ejector It is a one RPM motor To check the motor disconnect power to the appliance and test for continuity between the two leads If you DO NOT ha...

Страница 27: ...toward the or side One full turn of the screw will make an 18 cc change in the amount of water DO NOT turn the screw more than one full turn at a time If the water level is too high it can also cause...

Страница 28: ...27...

Страница 29: ...28 ICE MAKER TYPICAL WIRING DIAGRAM...

Страница 30: ...thermostat switches to its closed position after be ing sufficiently cooled by the ice in the mold The mold heater and motor are now energized The ejector blades begin to turn When the ejector blades...

Страница 31: ...timing cam closes the holding switch providing a circuit to the motor that will assure completion of this revolution The mold heater remains energized The shut off arm will raise and lower again oper...

Страница 32: ...rm thus operating its switch Near the completion of the second revolution the timing cam again closes the water valve switch This time a circuit is completed through the water valve solenoid its switc...

Страница 33: ...32...

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