Page 2 - Dometic RM Series Refrigerators Service Manual

2

Service Instructions for Domtic Absorption Refrigerators
The absorption refrigerators described in this manual are primarily for installation
in recreational vehicles.
Since the vehicles in which the refrigerator s are located may be driven to remote
camp sites wh ere electrical power is not available, the refrigerator5 have b e e n
a
o
designed co operate by mean s f b o t t l e p r o p a n e o r b u t a n e g a s a s we ll s b y
e l e c t r i c i ty 12/110V.
These Service Instructions cover the Dometic Models RM24, RM36C,
RM46, RM47, RM66, RM67, RM76, RM77.
LIST OF CONTENTS

Description Pag Description
ECHNIGU FE ATUR ES ELECTRIC OPERATION - FUNCTIONAL PARTS
Ca bine t es, equipment . .._ . .. . .... ......... ..... 3 Re place ment of heater_______________.__. 37
.
INSTALLATION INSTRUCTIONS Wiring dia gr ams ................................ 38
General instructions . ____ . . . . . . . . . . . 4 PRESSURE MEASURING DEVICES . . . . . . . . . . . . . . . 39

Ventilation___ . . . . . . . . . . . . . . . . . . . . . . . 5 OPERATING RECOMMENDA TIONS
Gas connections ____ ____ . . . . . . . . . . . . . . . 5 Gas operation _______ _____ _______ _____ 40
Electrical connections___________..______ 5 Electric operation . . . . . . . . . . . . . . . . . 41
Approved installations 7 MAINTENANCE

Me asure ments ... ____ . . . . . . . . . . . . . . . . . . . . 10 Levelling _________ . . . . . . . . . . . . . . . . . . 42
Ca binet A d j u s t m e n t s Temperature Control (thermostat) .... 42
To change the door panel _ . _ ____ _____ .... 13 The themostat capillary tube . . . . . . . . . . 42
Replacement of door gasket___.________.. 15 Storing food in the refrigerator_______. 43
Replacement of evaporator door and gasket. 16 Cleaning _____ . . . . . ______ . . . . . . . . . . . . . . . 43

Reversing outer door__ .... . . . . . . . . . . . . ___ 18 Ice cubes___________ ____ ______________ 43
.
THE ABSORPTION REFRIGRATOR SYSTE M Travel latch ____ ____ _____ . . . . . . . . . . . . . . . 43
Sealed system constructions .. _ _ _ _ . . . . . . . 20 Door seal_ . . . . . . ___ ______ ______ ____ ___ 43
Operating analysis for cooling unit . . . . . . 22 Odors inside the refrigerator . . . . . . . . . . . . 44
Cooling unit replacement . . . . . . . . . . . . . . . .. 23 Odors from fumes 44

GAS/ELECTRIC EQUIPMENT Flame blows out . . . . . ........ . ____ ________ 44
Gas equipment for RM24 ..... . . . . . . . . . .. .. 28 Flint lighter_______ . . . . . . . . . . . . . . . . . . 44
.
Dual electri c equipment for RM24 . . . . . . . . 29 Piezo lighter ____________ _ ____ _________ 45
Car/electric equ ipment for RM36C, DIAGNOSIS
RM46, RM47, RM66, RM67, RM76, RM77... _ _ _ _ 30
Trouble shooting - electric operated
AS OPERATION - FUNCTIO NAL PARTS refrigerators _____ __ . . . . . . . . . . . . . . . . . . . 47
.
Termostat - replacment ___ . . . . . . . .... . . 32 Trouble shooting - gas operated
.
refrigerators_______ . . . . . . . . . . . . . . ...... 48
.
The gas burner ...... .............. . . . . . . . . . . 33
Failed refrigerating unit_____..._____._ 49
Flue system . . . . . . . . . . . . . . ......... . . . . . . . . . 34
Operation analysis for electric
Thermo flame failure device . . . . . . . . . . . . . . . 35 operated refrigerators . . . . . . . . . . . . . . . . . . . . 50
Operation analysis for LP gas
operated refrigerators . . . . . . . . . . . . . . . . . . 51
Periodic maintenance . . 52