Page 47 - Dometic RM Series Refrigerators Service Manual
P. 47

TROUBLE SHOOTING     ELECTRIC OPERATED REFRIGERATORS

                                     Cause                                            Remedy
                          The refrigerator         not cool satisfactorily

                         Thennoatat at wrong setting.             Turn the thermostat dial to a higher number,

                         Air circulation over cooling unit        Remove any restriction,
                          restricted.

                         Refrigerator not level.                  The refrigerator must be level in both direc-
                                                                  tions to operate properly. If in a trailer,
                                                                  always make sure it is level when parked,
                                                                  See par. 28.

                         Air leakage into cabinet.                Check fit of door gasket, and that the seal-
                                                                  ing plug is in the hole for the thermostat
                                                                  capillary in the rear wall of cabinet.
                                                                  See par, 36.

                         Evaporator heavily coated with           Defrost at more frequent intervals,
                          frost.

                         Heater faulty, wrong voltage or          Use a new heater of appropriate voltage
                                                                   (see table page

                          Intermittent electricity supply.        Look for loose connections or other reason
                                                                  for interruption and correct,

                         Drop in supply voltage.                  The supply voltage should be maintained at
                                                                   the full rate,

                         Thermostat at too low setting.           Turn thermostat dial to higher number.

                          Break in electrical circuit,            Check fuses, switches, wiring, etc., and
                                                                   repair the fault,

                          Heater faulty (open circuit).            Replace with a new heater (see table page

                          Thermostat faulty.                       Fit a new thermostat.

                          Failed cooling unit.                     See par, 44.

                          The refrigerator is too cold

                          Thermostat at wrong setting.             Turn the thermostat dial to a lower number,

                          End of thermostat capillary tube         Re-insert the capillary end of thermostat
                          incorrectly   located.                   fully in the sleeve under the ice-tray
                                                                   compartment. See par, 30.

                          Thermostat faulty.                       Have new thermostat fitted.

                          Heater wrongly connected to              See wiring diagrams par. 19.
                          terminal block.
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