Bosch B22CS50SNW-01 General Repair - Instruction Download

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173_58300000002379_ara_en_j.doc – 29.04.14

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Complaint

Tests

Default

Action

No or too low
cooling power.
Compressor runs
permanently.

Look for leakages in the
refrigeration cycle.

Change of compressor only in case of a
leakage on the low pressure side

Missing / inadequate air
ventilation

Check back pressure at the
compressor.

Ca. 0,4 – 0,6 bar in the steady state
condition.

Change of compressor only in case of a
missing back pressure (no pressure drop
during operation can be noticed)

In case of a low back pressure (

0,3 bar):

Lack of refrigerant or cycle blocked.

Complaint

Tests

Default

Action

Noise

Close tubes

Bend the tubes carefully

The compressor contacts the
housing

Check the compressor mounting

The compressor activates
refrigeration cycle parts.

Dampen the tubes (abolish vibrations at the
tubes) or tie them down

The compressor knocks
when starting or running out.

Check the compressor mounting -

change of compressor

The compressor rings or
rattles

In case of abnormal noise – change of
compressor

Summary of Contents for B22CS50SNW-01

Page 1: ...10 2 10 Noise measure from customer 16 2 11 Odours 17 2 12 Repairing the refrigeration circuit 18 2 13 Refrigeration circuit leaking 24 2 14 Refrigerant capacity specification 24 2 15 Refrigeration zones in the refrigerator compartment 24 2 16 Small holes in the food compartment liner 25 2 17 Cleaning and caring for stainless steel appliances 26 2 18 Temperature 27 2 19 Filler neck on the compress...

Page 2: ...rdised values This is essential for personal safety and appliance function When repairs are complete conduct a test in accordance with VDE 0701 or the corresponding national regulations as well as a performance test Conduct a leak and performance test on the refrigeration circuit 1 2 Repair instructions Caution Comply with ESD information NEVER attempt repairs by randomly replacing components Alwa...

Page 3: ...igh water level Spare part No 00753407 The assembly has to be done according to the spare part information Please be sure that the heater is connected parallel to the power supply Function If water completely surrounds the heater the temperature and the resistance decrease Heater heats If no water surrounds the heater the temperature and the resistance increase heater stopps heating Overview heate...

Page 4: ...d the compressor may be impeded Heat will build up and impair the refrigeration circuit 4 The screw in the upper installation strip brushes against the cover panel on the built under cupboard The cause of this fault are incorrect cup bores or an inaccurately dimensioned mounting rail fitted to the front panel 5 The front panel is lopsided and brushes against the kitchen furniture Re adjustment is ...

Page 5: ...ll be manufactured Exceptions to this rule are FGK free standing appliances KS GS from 03 2007 FGK tabletop appliances 60 cm 03 2007 Complaint When replacing a door the customer could complain about the different tones of white on appliances with several doors Example old and new white If the customer complains contrary to expectations proceed as des cribed in the TOM 58300000125889 2 4 Detached m...

Page 6: ...o 12 C Refrigerator compartment 5 C Cool fresh compartment 2 C to 3 C Freezer compartment 18 C Door not opened Full load The standard consumption value enables different appliances to be compared 2 6 2 Energy efficiency The energy efficiency classes consist of energy consumption usable capacity and type of appliance The energy efficiency classes range from A plus very low to G high 2 6 3 Increased...

Page 7: ...s have not been calibrated The compartment temperatures cannot be set exactly for some appliances The compartment temperatures are subject to control cycles If basic conditions vary e g weekdays and workdays change in weather etc In order to take measurements which are approx correct standard consumption value the following basic conditions must be observed Ambient temperature approx 25 C when doo...

Page 8: ...y 2 8 1 Increased humidity Causes Door seal leaking Drainage channel or drainage hole for the condensation is blocked Long door opening times Large quantities of moist food are stored unwrapped in the appliance Low ambient temperatures reduce the running time of the compressor In this case the humidity does not precipitate on the evaporator but on the glass plates or on the food coldest point Bubb...

Page 9: ...of fault If the air humidity is above 80 condensation may occur on the side panel Condensation may occur especially in the case of so called side by side appliances refrigerator and freezer are placed next to each other due to the lack of ventilation between the side panels Rectifying the fault Use repair kit material no 00435234 see drawing The repair kit can also be used for built in appliances ...

Page 10: ...or switches on When the compressor switches off a rattling noise may be heard Flowing noises The bubbling or gurling noise is generated by the refrigerant as it flows through the tubes Switching noises The clicking noise is caused by the temperature controller or a solenoid valve Air flow noises If the appliance features an internal fan No Frost the air flow inside the appliance may generate a rus...

Page 11: ...a spirit level Use the height adjustable feet or place packing underneath them The appliance is not free standing Move the appliance away from furniture or appliances Built in parts are loose or sticking Check the removable parts and if required re insert Bottles or receptacles are touching each other Move bottles or receptacles away from each other ...

Page 12: ...41 Junction of the throttle suction tube forked tube vibrating To prevent vibration noises the junction of the throttle suction tube should be jacketed with an absorption material material no 00153737 On the compressor On the freezer compartment evaporator ...

Page 13: ...el tube is not accessible at the injection point If the freezer compartment features a wire tube evaporator check that the throttle tube runs straight in the injection area in front of the soldered joint If required carefully straighten the tube risk of fracture Jacket the injection point with absorption material material no 00153737 2 9 3 History of noise generation The type of noises has changed...

Page 14: ...or close by furniture Fix removable parts storage shelves frames Bend pipes until they can swing freely if necessary insert absorption or distance parts Is customer still dissatisfied Is customer dissatisfied Is the appliance too noisy subjective impression Noise testing Is customer complaint justified Simple mechanical noise rattling Does the appliance stand on level and stable Are removable part...

Page 15: ...l fan available Fan noise screaming scratching noise Fan okay Is the internal fan ice free Fix fan centrical Replace fan Eliminate causation Replace fan Compressor okay Replace compressor Laying of capillary tube okay particularly before FD 7210 Straighten capillary Is laying between GS and KS part kink free Pulsating noises Evacuate refrigeration circuit carefully and fill the appliance don t jet...

Page 16: ...hms in the app are faulty Usually such apps are not certified or created by hobby programmers who do not know about all required specification Thus errors must be expected 5 Kitchens living rooms or apartments in general do not fulfill the requirements for standardized test room as described in IEC 60704 By not fulfilling these requirements measurements at home cannot give the right and comparable...

Page 17: ... individual parameter have a significant influence on the acoustical behavior and thus on the test results This is another reason why a customer cannot verify a noise declaration value at home It needs specially designed noise chambers meeting the requirements of international standards 2 11 Odours Our appliances are manufactured from plastics which conform to the Lebensmittel Bedarfs Gegenstands ...

Page 18: ...ck food or cover well before placing in the appliance Remedial action Clean appliance thoroughly vinegar water and ventilate for a prolonged period When the appliance is switched on again the odour will diminish If odours are stubborn clean the appliance several times Then clean the appliance monthly with a detergent solution as recommended in the operating instructions 2 12 Repairing the refriger...

Page 19: ...remaining in the test equipment is low and that the appliance is in perfect working order after the repair 2 12 2 3 Disposal of compressor oil The refrigerant dissolved in the oil of the R 600A compressors cannot be completely removed at a justifiable cost R 600A compressors should therefore be completely and hermetically sealed prior to disposal If the compressor oil has to be disposed of separat...

Page 20: ...s Example Check weighing accuracy with standard weight and if required re adjust the balance Weigh extraction valve subtract 65 4 g Empty weight of the refrigerant cartridge e g 29 5 g subtract 29 5 g Screw extraction valve onto the refrigerant cartridge Weigh refrigerant cartridge with screwed on extraction valve and add the weight this takes into consideration the refrigerant lost when extractio...

Page 21: ...ed excess refrigerant amount with a negative sign Close the extraction valve If the appliance filling amount is greater than the contents of the cartridge an appropriate number of cartridges must be used 2 12 2 5 Evacuating and filling the appliance Evacuating the appliance The appliance must be evacuated on both sides Close all valves on the fitter aid Arrange the work according to the DIAGRAM an...

Page 22: ...ue filling Start the compressor in order to draw in all the refrigerant from the cartridge However the compressor must not be started until the vacuum has been broken otherwise electrical flashovers may occur When the compressor is running wait until the suction pressure moves significantly in the low pressure range approx 700 mbar Only then is the R 600A filling cartridge completely drained Close...

Page 23: ...sure side and a tormeter The tormeter measures the range between 1 bar and a vacuum of 0 bar and is used to display the low pressure in the refrigeration circuit during the evacuation process The values can be read off very accurately on account of the wide scale The fitter s aid features several valves The valve with the blue switch is for the intake side The valve with the red switch is for the ...

Page 24: ...exact refrigerant capacity cannot be specified in the service documentation spare parts list repair manual The refrigerant capacity for the appliance which is to be repaired can be found on the appliance rating plate 2 15 Refrigeration zones in the refrigerator compartment The air circulation in the refrigerator compartment produces different refrigeration zones Perishable food requires a storage ...

Page 25: ... 0 5 to 1 0 mm must be drilled into various locations of the food compartment liner so that the air can escape during the foaming procedure These small holes are closed tightly during the foaming procedure There remains only a small mark which is hardly visible to the naked eye The small air vent holes are caused by production and exist in every appliance In case of a complaint the customer must b...

Page 26: ...aning product Instructions The cleaning and care set is available under material no 417980 2 17 1 Stainless steel rusts Stainless steel chromium steel 4016 must not be cleaned or come into contact with non oxidising acids solutions and their salts media containing chloride sea water Standard sponge cloths may also be the reason our chromium steel 4016 rusts These sponge cloths are dyed and the res...

Page 27: ...Produce placed in appliance The electronically controlled appliances are an exception These appliances are within the functional range irrespective of the ambient temperature If the appliance door is not opened and no fresh produce is placed in the appliance this is known as the steady state Steady state The compressor operates exclusively to compensate for the incidence of heat by means of insula...

Page 28: ...te value the measurement should be taken in a medium e g a glass of water Ideally the refrigerator or freezer should be in the steady state It therefore makes sense to take a continuous measurement over a prolonged period at least 24 h with a data logger The data logger must not come into contact with the evaporator surface The optimum measurement is between the refrigerated or frozen produce The ...

Page 29: ...tate Tolerance bands EAN Mean energy absorption per day RED Relative compressor ON duration TM Mean refrigerator compartment temperature TV Mean freezer compartment temperature TFKF Mean cool fresh compartment temperature TKEF Mean cold storage compartment temperature TR 16 16 C Ambient temperature TR 25 25 C Ambient temperature TR 32 32 C Ambient temperature Controller position minimum Controller...

Page 30: ... ON duration and the mean energy absorption per day can also be determined Example of diagnosis aid A fridge freezer with mechanical control Ambient temperature 25 C Controller position 1 Measured refrigerator compartment temperature 9 C Measured freezer compartment temperature 17 C Refrigerator compartment temperature tolerance band Relative ON duration The setpoint temperature of the refrigerato...

Page 31: ...setpoint temperature of the freezer compartment is between 10 C and 19 C The freezer compartment temperature is correct in this example The measured freezer compartment temperature is 17 C in the tolerance band 10 C to 19 C Energy absorption tolerance band The mean energy absorption per day is 0 33 0 75 kwh d ...

Page 32: ...efrigeration circuit cannot therefore be filled via the filler neck as the compressor filler pipe and the customer service filler pipe cannot be connected with a Lokring If a replacement compressor is used the filler pipe can be attached as usual To fill the refrigeration circuit a Lokring T piece with valve must be installed on the suction side The refrigeration circuit is then evacuated and fill...

Page 33: ...essor connection Mains voltage 198 254 V Measure the resistance of the auxiliary winding and the main winding Technical data in Quickfinder The resistance of a cold compressor is between 5 100 Ohm according to the compressor size and the manufacturer Wait until the appliance is switched on again in case of an inside winding shield switch Danfoss Attention Goldstar compressors have another PIN assi...

Page 34: ...only in case of a missing back pressure no pressure drop during operation can be noticed In case of a low back pressure 0 3 bar Lack of refrigerant or cycle blocked Complaint Tests Default Action Noise Close tubes Bend the tubes carefully The compressor contacts the housing Check the compressor mounting The compressor activates refrigeration cycle parts Dampen the tubes abolish vibrations at the t...

Page 35: ... mm 5 90 6 45 6 00 mm 6 90 7 10 7 00 mm 7 90 8 10 8 00 mm 9 40 9 70 9 53 mm The specifications of the pipe diameter refer to the unpainted tube Maybe the nozzle of the Lokring connection has to be carefully enlarged if the connecter is smaller than the pipe diameter For identifying the correct pipe diameter it must always be measured 2 22 Lokring connection Conditions of the tubes To ensure a leak...

Page 36: ...lder joints and connection points A leak in the foam can only be coded if there is no trace of oil on any connection Examples of oil leaks 2 24 Removing adhesive residue Internal tests have shown that adhesive residue is best removed with commercially available glass cleaner Sidolin or methylated spirits These two cleaning agents may also be used without concern and are available everywhere in the...

Page 37: ...il from 05 99 Molykote silicone lubrication from 07 99 3 Impact effect Cause Fallen objects sheet of glass or tin can Area On the floor in front of the vegetable drawer Appearance Often a pressure mark is still visible or the plastic on one side of the crack is hooked under 4 Assessment aid for cracks Feel the surface of the damage with your fingers If you cannot feel any unevenness this indicates...

Page 38: ...f the components which conduct water A method to significantly reduce the bacterial count is sanitisation Sanitisation therefore means a reduction in the bacterial count Sterilisation completely eliminates bacteria Customer service uses only the chemical method of sanitisation To do this a 1 percent solution of hydrogen peroxide HUWA SAN med 2 is conveyed into the water conducting system of an app...

Page 39: ...C A U T I O N Injuries may be caused by liquid spraying out After finishing the sanitation work empty the pressure tank completely and depressurize it N O T E Any microbiological substance in the water filter is not sufficiently removed by sanitisation Before sanitisation replace the filter with a bypass After sanitisation replace with a new filter N O T E The microbiological substance is not suff...

Page 40: ...173_58300000002379_ara_en_j doc 29 04 14 Seite 40 von 41 2 27 Different compartments ...

Page 41: ...173_58300000002379_ara_en_j doc 29 04 14 Seite 41 von 41 3 LAW ADVICES Not required ...

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