Dometic RH423LDA Service Instructions Manual
Freestanding and built-in absorption refrigerators
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Also See for RH423LDA:
- Installation and operating manual (61 pages) ,
- Installation and operating manual (260 pages)
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Summary of Contents for Dometic RH423LDA
- Page 1 Service Instructions RH423LDA RH423LDAG RH439LDA RH439LDAG RH449LD RH439D RH449D Freestanding and built-in absorption refrigerators...
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Page 2: Table Of Contents
Table of Contents: The appliance ................3 1.1. Description ..................3 1.2. Warning ..................3 1.3. Spare parts, electrical connection diagram ........3 Assembly and repairs ..............4 2.1. Tools ..................... 4 2.2. Cabinet, door ................5 2.2.1. Reversing the door hang .............. 5 2.2.2. -
Page 3: The Appliance
Spare parts lists and electrical connection diagrams are listed by Product number at http://www.electrolux-ti.com. Warning! Parts in need of replacement during repairs may only be replaced by parts identical to the original, chosen from the spare parts list! Using parts not originally manufactured by DOMETIC shall result in the loss of guarantee. -
Page 4: Assembly And Repairs
2. Assembly and repairs 2.1. Tools Figure 1 Recommended tools: - combination pliers size 160, 2 pieces - magnetic screwdriver handgrip - screwdriver bit marked Pz 1 - screwdriver bit marked Pz 2 - crosshead screwdriver marked Ph 1 - flat screwdriver 120 * 5 - flat screwdriver 100 * 4 - spanner size 14 - testing apparatus for 1000 V electrical insulation resistance... -
Page 5: Cabinet, Door
2.2. Cabinet, door 2.2.1. Reversing the door hang When refitting, take care not to break the lower hinge bolt! Remove the screws of the upper door hinge (Figure 2) Remove the screws of the upper door hinge cover cap (Figure 3) Figure 2 Figure 3 Open the door, pull out the upper door hinge by tilting the door Figure 4) - Page 6 Relocate door fulcrum bolt along with spacer ring to left fastening foot (Figure 8) Place door on fulcrum bolt (Figure 9) Figure 8 Figure 9 Place hinge which comes with the refrigerator into upper left door hinge hole on door, restore plastic cover, and fasten with 2 screws (Figure 10, 11) Figure 10 Figure 11 Restore door hinge cover cap to upper right aperture, then fasten with screw...
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Page 7: Changing Feet
2.2.2. Changing feet 2.2.2.1. Front feet Remove foot extension pieces by removing each screw (Figure14) Remove fastening feet by screwing each lot of 3 screws (Figure 15) Figure 14 Figure 15 There are some appliances that are fitted with only fastening feet. The size of such foot at the back is naturally smaller. -
Page 8: Replacing The Flange
2.2.3. Replacing the cowl Turn the cabinet on its door, on an appropriate protective underlay. (Figure 19) Remove 2 lower screws fastening the cowl (Figure 20, 21), while the rest of the screws need only loosening, in order that the cowl can be slid from under the screw. -
Page 9: Replacing The Door Lock
2.2.4. Replacing the door lock Open the door. Remove rosette with the help of 2 flat screwdrivers. (Figure 24) Figure 24 Figure 25 Remove lock cover. With the bolt contracted, pull the rim of the lock cover onto the bolt with the help of a flat screwdriver, so that it will not spring back. -
Page 10: Replacing The Door Plate
Reassembly is performed in a reverse order. The rosette and the lock cover should be restored by applying slight pressure. When restoring the lock cover, the bolt should be contracted. 2.2.5. Replacing the door panel Replacement of the door panel must be performed when the door and lock are disassembled (see sections 2. - Page 11 Remove door panel. (Figure 33) Place the new door panel in the grooves in the door. Push the panel to an extent that the holes of the cylinder lock on the panel and the door are concentric. (Figure 34) Figure 33 Figure 34 Insert frame edge, fasten with screws.
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Page 12: Electrical Equipment
2.3. Electrical equipment 2.3.1. Operation 2.3.1.1. Description The appliance is furnished with integrated electronic control (Fuzzy Logic III). Electronics include interior temperature control, cooling unit control, automatic door control, automatic defrost as well as light control. The lighting unit consists of 2 LED light sources, which, along with providing lighting of the interior, also indicates the result of the self-test executed by the electronics when voltage is applied to the appliance, but only when the door is open. -
Page 13: Checking The Cooling Unit (Cuc)
2. 3. 1. 4. Checking the cooling unit (CUC) The evaporator sensor checks the appropriate operation of the appliance after every defrost period (every 24 hours) by applying a temperature-drop test to the evaporator. In case of a failure, it stops the operation of the appliance and the LEDs start blinking continuously (when door is open). -
Page 14: Assembly
2.3.2. Assembly: The electrical equipment of the appliance is divided into two main connecting points: 1. The light panel under the light cover. 2. The Fuzzy controller panel under the electrical cover. 2.3.2.1. Replacing parts under the light cover Remove the cover fastening screw, set aside the bolts (only for appliance fitted with lock).(Figure 35) Remove light cover by carefully pulling it with two screwdrivers. -
Page 15: Replacing The Assembled Optical Sensor
2.3.2.1.1. Replacing the assembled optical sensor Figure 39 Remove light cover as per section 2.3.2.1. Remove PCB connector from lighting panel (Figure 39) By carefully pressing the hemispherical ends of the sensor parts with fingertips, push the sensor from its seating, hold onto it at the wires and remove it. -
Page 16: Checking And Replacing Parts Connected To The Fuzzy Controller
When ready with the operation, clip back the lighting panel in its place, and order the cables. Place light cover in grooves located in internal container, clip on, and tighten light cover screws. (Figure 42) After disassembling this electrical part, no electrical insulation resistance test is necessary. - Page 17 15° C 27.8Ω 20° C 27.9Ω Disconnect the end of evaporator sensor cable from sensors marked X8 on Fuzzy PCB (Figure 46) Figure 46 Turn refrigerator back on its feet, open door. Remove cover panel from refrigerator. (Figure 47) Remove evaporator board from evaporator pipe, remove sensor tip from sensor seating (Figure 48, 49) Pull sensor from the cabinet body in the direction of the back panel.
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Page 18: Replacing The Temperature Sensor
Restore electrical cover. (see Figure 43) 2.3.2.2.2. Replacing the temperature sensor Remove temperature sensor PCB connector from sensors marked X9 on Fuzzy panel. (Figure 50) Turn refrigerator back on its feet, open door. Figure 49 Figure 50 Figure 51 Figure 50 Clip out cover plug from temperature sensor cover, remove screw. -
Page 19: Replacing The Heating Cartridge
2.3.2.2.3. Replacing the heating cartridge Turn refrigerator on its door. Remove flange and electrical cover. (see 2.3.2.2., 2.2.2.) Remove PCB connector of heating cartridge from the motherboard (X3), disassemble grounding. (Figure 54) Figure 54 Bend out horns designed to fasten the cover of boiler insulation. (Figure 55, 56) Remove upper and lower boiler covers. - Page 20 (Figure 59, 60) Figure 59 Figure 60 Mark fastening position of heating cartridge on boiler with a permanent felt- tip pen (in order to facilitate subsequent reassembly) (Figure 61) Remove fastening spring of heating cartridge. (Figure 62) Figure 61 Figure 62 Twist heating cartridge in the direction of the back panel.
- Page 21 Position the cartridge, refine position (cartridge rim must be 13 mm from the median of boiler’s lowermost impression in the case of all versions) Twist cartridge in a way that it stands in the opposite direction of the soaker. (Figure 66) Restore boiler cover, clip together, twist to its place, restore boiler covers, fasten by bending horns on cover.
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Page 22: Replacing The Automatic Door Control Led
2.3.2.2.4. Replacing the Automatic Door Control LED Remove electrical cover (see 2.3.2.2.) Pull off PCB connector of automatic door control LED cable from motherboard (X6). (Figure 71) Figure 71 Figure 72 Remove screws from LED cable fasteners on back panel and bottom panel. -
Page 23: The Cooling Unit
2.4. The cooling unit 2.4.1. Replacing the cooling unit Open refrigerator door. Remove cover panel from refrigerator. Remove evaporator board from evaporator pipe, remove sensor tip from seating. (see 2.3.2.2.1.)) Turn refrigerator to its door. Remove flange and electrical cover. (see 2.2.3., 2.3.2.2.) By pressing horns, lift Fuzzy III panel from its seating. -
Page 24: Information
2.5. Information: Certain appliance versions do not contain all parts (lock, flange, automatic door control, light). Sections of the instructions relevant to the above do not apply to such appliance versions.