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Dometic EA 3080 Service Manual

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Models:
EA 3080
EA 3120
EA 3140
Pub. Nr.: 599363870 – REV.:A
Service Manual
WA 3080
WA 3120
WA 3140

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Summary of Contents for Dometic EA 3080

  • Page 1 Service Manual Models: EA 3080 WA 3080 EA 3120 WA 3120 EA 3140 WA 3140 Pub. Nr.: 599363870 – REV.:A...

  • Page 2: Table Of Contents

    Table of Contents: The appliance ..................3 1.1. Specifications ..................3 1.2. Important notes.................. 3 1.3. Spare parts ..................4 1.3.1. Cabinet ....................4 1.3.2. Aggregate and electrical circuit............4 1.3.3. Door....................5 1.4. Wiring diagram .................. 6 Installation and repair operations............7 2.1.

  • Page 3: The Appliance

    1. The appliance 1.1. Specifications The appliance is a 21, 31 and 41 litre upright refrigerator, operating with a wet absorption cooling system. At ambient temperatures between +16°C and +32°C, the cooling compartment temperature can be adjusted between 0°C and +6°C using the thermostat. It is suitable for ice making using the ice tray placed on the cooling flange.

  • Page 4: Spare Parts

    1.3. Spare parts 1.3.1. Cabinet 1. Foamed cabinet 2. A,B,C Leg 3. Hinge 4. Door hinge top 5. Door hinge bottom 6. Door hinge hole cover 8. Cooling flange 10. Thermostat switch 11. Thermostat switch pad 12. Socket and switch casing 13.

  • Page 5: Door

    1.3.3. Door 101. Foamed door 103. Door panel 104. Lock bar 106. Lock 110. Door shelf 111. Bottle holder rail Figure 3 Attention! Any functional parts that need to be replaced during repair may only be replaced by parts identical to the originals and which were chosen based on the list of spare parts!

  • Page 6: Wiring Diagram

    1.4. Wiring diagram Wiring diagram without temperature controller Figure 4 Wiring diagram with temperature controller (as of April 2002) Figure 5...

  • Page 7: Installation And Repair Operations

    2. Installation and repair operations 2.1. Tools Figure 6 Recommended tools: - Universal pliers 160-mm, 2 pc. - magnetic screwdriver handle - Pz 1 fitting-strip - Pz 2 fitting-strip - Phillips screwdriver Ph 1 - Standard screwdriver 120 * 5 - Standard screwdriver 100 * 4 - 14-mm wrench...

  • Page 8: Cabinet, Door

    2.2. Cabinet, door 2.2.1. Adjusting right and left-hand swing door Unscrew top door mount screws. (Figure 7) Unscrew door mount hole cover screws. (Figure 8) Figure 8 Figure 7 Open door. Pull top door mount by tilting door. (Figure 9) - Set aside door mount, unhinge door from bottom door mount pin.
  • Page 9 Place cabinet on its back carefully so that the hinge is not damaged. Dismount two front outer legs carefully so that the inner leg does not fall out of the outer leg socket. (Figure 12,13,14) (The screws of the leg secure the door mount and the door stop.) Figure 12 Figure 14...

  • Page 10: Replacing Legs

    Place the replaced bottom door mount into left top door mount bore of door. Push door mount into left-hand-side opening and secure with 2 screws. (Figure 20,21) Figure 21 Figure 20 Push door mount hole cover into upper right-hand-side opening, then secure with a screw.

  • Page 11: Replacing Hinge

    Figure 25 Figure 24 Figure 23 Set aside the outer legs (possible re-mounting). Place the refrigerator on its legs and check the door opening (the door mount might have been repositioned due to loosening the door mount locking). 2.2.3. Replacing hinge Turn cabinet onto door using appropriate protection support.

  • Page 12: Replacing Lock

    Fasten screws starting with the screw next to boiler insulation, while holding the unfastened end of hinge with your hand. Tighten screws. While fastening, check the leveling of hinge and plate. Adjust as necessary. 2.2.4. Replacing lock Open door. Pull down rosette using 2 standard screwdrivers. (Figure 31) Pop up lock cover.

  • Page 13: Replacing Door Panel

    2.2.5. Replacing door panel Replacement of the door panel should be done with the door detached and the lock dismounted (see 2.2.1, 2.2.4). Remove door shelves. They can be removed by lifting the shelves. (Figure 36,37) Figure 36 Figure 37 Place door –...
  • Page 14 Pull out door panel. (Figure 40,41) Figure 41 Figure 40 Adjust foil lining. Place the the door panel up to the handle lath into groove on one side of door. (Figure 42) Slightly bend door panel. (Figure 43) Snap door panel into place in groove on other side of door. Figure 42 Figure 43 Push door panel until cylindrical bores on the plate and on the door are...

  • Page 15: Electrical Component (Fuzzy Logic Solution)

    Insert locking-panel, secure with screws. Reinstall lock (see 2.2.4) Reinstall door (see 2.2.1) 2.3. Electrical component (Fuzzy logic solution) 2.3.1. Replacing lighting device and bulb Remove screws securing lighting device. (Figure 46) Detach blocking tab on reflector from the lighting device by pressing the reflector plate.
  • Page 16 Figure 51 Figure 52 Insert control switch while holding socket in place with your finger. (Figure Screw in bulb while constantly holding down the socket. (Figure 54) The bulb holds the socket elements in place, then the reflector mount can be popped open.

  • Page 17: Replacing Bulb Without Dismounting Lighting Device

    Install lighting device, with attention to the placement of electrical wires. (Figure 57) Figure 57 Figure 56 - Fastening securing screws. Make sure it fits correctly. The must be no gap between the lighting device and the inner compartment. 2.3.2. Replacing bulb without dismounting the lighting device By pushing the reflector plate unhinge blocking tab on reflector from the light shield.

  • Page 18: Replacing Heating Element (Cylinder Heating Element)

    2.3.3. Replacing heating element (cylindrical heating element) : Remove screws of electrical cover. (Figure 61) Remove electrical cover. (Figure 62) Pop out locking tabs of the base with a screwdriver, lift off printed circuit board. (Figure 63) Figure 63 Figure 61 Figure 62 Push off flat socket of heating element from flat connector with a screwdriver (x3 connector).
  • Page 19 Unscrew securing screw of boiler-insulation. (Figure 68) Turn metal casing of boiler-insulation so that the joint rim becomes visible. While slightly pressing the metal casing of the boiler-insulation, detach the rims. (Figure 69) Turn out insulation – metal casing and rock wool together – from under the boiler.

  • Page 20: Replacing Temperature Sensor

    2.3.4 Replacing temperature sensor Remove electrical cover. (See 2.3.3) Push off flat sockets of temperature sensor from the flat connectors of printed circuit board. (Sensor) Open refrigerator door, remove plugs from two bores of sensor cover in the inner compartment, set aside. (Figure 74) Unscrew screws of sensor cover, lift out sensor from cover.

  • Page 21: Temperature Controller (Thermo Fuse)

    Figure 79 Figure 80 Place the sensor head in the nest of the sensor cover, screw the cover back in place. Place the 2 plugs back in the bores of cover. Push back the sensor wires onto the flat connectors of the printed circuit board (Sensor).

  • Page 22: Cooling Aggregate

    2.4. Cooling aggregate 2.4.1. Replacing cooling aggregate Attention! The cooling aggregate must only be replaced when also replacing the temperature controller or; in the event of a circuit break in the temperature controller, the cooling aggregate must also be replaced at all times.
  • Page 23 Foam insert I. – remove securing strap of foam insert II. Pull off foam inserts in opposite directions from evaporator tube. (Figure 90,91) Figure 87 Figure 88 Push pair of foam inserts onto the new aggregate, secure with insulation tape. Final assembly of temperature controller, mounting onto aggregate: Figure 89 Figure 89 presents the necessary elements and tools, for your information.
  • Page 24 Figure 90 Figure 91 Figure 92 - Secure temperature controller on boiler-tube of aggregate with 2 screws. Pull protecting socket onto the end of outer securing screw of temperature controller, because the sharp end of screw can cause an accident. (Figure 93,94) Figure 94 Figure 93...
  • Page 25 Place refrigerator in upright position Open cabinet door. Place cooling flange onto evaporator tube, push in place with vertical pressure until it fits. (Figure 96, 97) Figure 97 Figure 96 Check electrical insulation resistance according to section 2.3.3. Information: Certain devices do not include all of the elements (lock, lamp, doorshelf, temperature controller).

  • Page 26: Devices Of Different Composition

    Devices of different composition 3.1. ”Half-moon” shaped heating element composition (as of May 2003) 3.1.1. Spare parts (Aggregate and electrical circuit) Figure 98 200. Cooling aggregate + (335.) Temperature controller 201. Foam insert I. 202. Foam insert II. 203. Boiler insulation 205.

  • Page 27: Replacing Heating Element ("Half-Moon" Shaped)

    3.1.2. Replacing heater element (”Half-moon” shaped) Unscrew hinge screw on boiler side, slightly bend out side wall of hinge. (Figure 99) Remove temperature controller from boiler (see 2.3.4). Bend out tabs of boiler casing. (Figure 100) Remove cover. (Figure 101) Figure 100 Figure 101 Figure 99...
  • Page 28 By applying firm pressure to the clamp, snap the heating element onto the boiler. (Figure 105) Figure 105 Position element, adjust its position. The element must be positioned in the direction of hinge, and its upper edge must be ~ 85 mm from the lower edge of the plate holding the aggregate (see: spare parts exploded view).

  • Page 29: Model With Electromechanical Thermostat

    3.2. Electromechanical thermostat composition. 3.2.1. Spare parts With cylindrical heating element 200. Cooling aggregate + (335.) Temperature controller 201. Foam insert I. 202. Foam insert II. 203. Boiler insulation 205. Drain water evaporator 300. Various power outlets 302. Terminal 303. Terminal ground-plate 304.

  • Page 30: Wiring Diagram

    3.2.2. Wiring diagram Wiring diagram without temperature controller Figure 110 Wiring diagram with temperature controller (as of April 2002) Figure 111...

  • Page 31: Replacing Thermostat

    3.2.3. Replacing thermostat Dismount cooling flange (see 2.4.1) Wind off insulation tape securing thermostat capillary, straighten capillary. (Figure 112,113) Figure 112 Figure 113 Pop out wire plug from thermostat switch, pull off thermostat switch from the thermostat switch’s axis with a universal plier with protective coating. (Figure 114,115) Figure 114 Figure 115...
  • Page 32 Lay refrigerator onto door, support if necessary (see 1.2.3). Remove thermostat cover. (Figure 118,119) Remove electrical wire from thermostat. (Figure 120) Figure 118 Figure 119 Figure 120 Unscrew securing screws from thermostat. (Figure 121) Dismount thermostat case by loosening the locking nut. (Figure 122) Pull out thermostat capillary from refrigerator cabinet, remove difective thermostat.

  • Page 33: Replacing Timer

    Place refrigerator in upright position. Fold the thermostat capillary onto the generatrix of the evaporator tube and secure with insulation tape so that the end of the capillary is 150 mm from the end of the evaporator tube. Reinsert cooling flange (see 2.4.1). Push thermostat switch back onto the shaft of thermostat.

  • Page 34: Appliance With Semi-Automatic Defrosting

    Replace timer, set: turn defrost marking clockwise by 90º compared to marking on the casing. Meanwhile, you should hear 2 clicks. This way the timer is definitely turned on. (Figure 129,130) Reinsert timer, making sure that the rotating part sits in the bore of the textile-bakelite housing.

This manual is also suitable for:

Wa 3080Ea 3120Wa 3120Wa 3140Minicool ea 3140

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