Bosch SRU53E05AU Repair Instructions Download Page 31 | Manualshive

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815_58300000120057_ara_en_d.doc – 25.05.11

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6.2

Replacing the Aqua Stop valve

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Open the housing

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Disconnect the inlet hose

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Cut through the electric connecting cables

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Strip the insulation off the cable ends

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Push the shrink-fit hose over the cable

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Connect electric cables to the insulating sleeves (1.)

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After fitting, warm the connectors until the shrinkage process occurs
and the hot-melt adhesive comes out of the ends of the connectors
(2).

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Push the shrink-fit hose over the connectors and also warm until
the shrinkage process is complete (3)

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Summary of Contents for SRU53E05AU

Page 1: ...ptical low rinse aid sensor optional 16 4 9 Dispenser 17 4 10 Water softening system 18 4 11 Regeneration valve 19 4 12 Filter system 20 4 13 Rinsing and pumping system 21 4 14 Door spring 22 4 15 Circulation pump SICASYM 23 4 16 Instantaneous water heater 24 4 17 Detergent solution pump 25 4 18 Level sensor with safety function 26 1 1 Water inlet without heat exchanger 27 4 19 Water points 28 5 F...

Page 2: ...ds 43 7 FAULT DIAGNOSTICS 44 7 1 Draining 44 7 2 Odour 45 7 3 Noises 46 7 4 Rinsing result 47 7 5 Drying result 56 7 6 Circulation pump 57 7 7 Control unit module cable harness 58 8 TECHNICAL SPECIFICATIONS 59 8 1 General technical specifications 59 8 2 Consumption rates 60 ...

Page 3: ...safety and appliance function When repairs are complete conduct a test in accordance with VDE 0701 or the corresponding national regulations When repairs are complete perform a function and leak test WARNING Comply with the following instructions If conducting the test in accordance with VDE 0701 via the connector the heater instantaneous water heater must be tested directly for insulation faults ...

Page 4: ...s which are fitted to the end built in or under or are free standing 2 2 Electrical connection Connect the appliance to a correctly installed earthed socket only Comply with the specifications on the rating plate 2 3 Water connection If the appliance is connected to the drain with the standard hose length the max permitted height from the floor is 90 cm If the drain age hose is extended a max heig...

Page 5: ... 1 Half load optional The Half Load function reduces water consumption and the running time Basically this is achieved by passing over the prerinse and the second intermediate rinse cycle 3 4 2 Intensive drying optional If intensive drying is activated the temperature is increased by 3 K in the final rinse to improve the drying result 3 4 3 Reducing time optional The running time of the rinse prog...

Page 6: ...d a drying cycle 3 5 5 Quick 35 45 The programme consists of a wash cycle at 35 45 one intermediate rinse cycle final rinse at 55 without drying 3 5 6 Prerinse The programme consists of a prerinse only 3 6 Setting the hardness range Rotate the switch to position 9 one position to the left press and hold down the main switch until the current setting lights up on the display and then release the ma...

Page 7: ...s cribed under Initial start up Replacing the electronics 4 1 2 Warm water detection If the water running into the final rinse cycle is hotter than 45 C the temperature in the final rinse cycle is increased to 72 C in order to increase the inherent heat of the dishes The heat exchanger is not filled 4 1 3 Power failure The electronics module has a power failure memory function which ensures that t...

Page 8: ...cs see listing of triacs The drainage pump and the instantaneous water heater are switched on by relays 4 1 7 Listing the triacs If replacing a module due to a defective triac ensure that the actuated component is also checked Before replacing a module always start the customer service test programme Before replacing a module follow the ESD instruc tions Before replacing a module due to a defectiv...

Page 9: ... Initial start up Replacing the electronics The following programme sequence must be taken into consideration during the initial start up or when replacing the electronics Programme counter 0 Programme sequence during the initial start up without heat ex changer ...

Page 10: ...TC 1 the PTC heats up and transfers the heat to the wax filled metal cylinder 4 The wax expands and forces the plunger 6 out of the cylinder The plunger 6 transfers the mechanical movement to the release mechanism for dispensing the detergent and rinse aid If the heat source is switched off the volume of wax is reduced by the cooling process The pressure spring 3 returns the plunger 6 back to its ...

Page 11: ...rbidity ranges The Aqua sensor is active in the prerinse cycle decision on water change before washing in the wash cycle washing temperature and rewash time depending on turbidity range 6 turbidity ranges at the end of the wash cycle via the type and number of intermediate rinse cycles 3 turbidity ranges 48 programme structures are possible in the automatic programme In each programme sequence in ...

Page 12: ...he base pan The Aqua Stop valve is enclosed by a housing The housing is connected to the bottom pan by a leakage water hose sleeve of the inlet hose D The inlet hose C and the electric control cable B for the solenoid valve are situated in the leakage water hose D If leaks occur in the area of the valve or inlet hose these are conveyed into the base pan via the leakage water hose 4 4 2 Technical s...

Page 13: ...ach revolution The generated impulses are counted by the electronics module and cannot be measured Technical specifications Designation Value Unit Hydraulic specifications Minimum flow rate Maximum flow rate Nominal flow rate 0 8 4 0 2 5 l m Electrical specifications Output signal Switching current Rectangular signal max 5 mA Nominal output signal at 2 5 l min flow rate 208 impulses litre To facil...

Page 14: ...ised temperature safety switch 85 C is combined with the NTC sensor If a fault occurs the heater is switched off at a water temperature of 85 C operates in switching mode Temperature in C Resistance in kW Tolerance C 25 48 4 7 9 30 38 5 7 1 50 16 5 6 2 60 11 0 5 6 65 9 1 5 5 ...

Page 15: ...nal The dispenser contains a float with an integrated permanent magnet A The magnetic field actuates a reed switch on the outside of the dispenser The lamps of the refill indicators in the control panel are switched on via this reed switch A Permanent magnet B Reed switch open C Reed switch closed ...

Page 16: ... receiver diode B via a prism C If the dispenser is full the light beam in the prism is scattered The received signal is weaker than the transmitted one If the dispenser is empty the light beam in the prism is reflected The received signal is the same as the transmitted signal The module evaluates the received signal and the refill indicator LED is actuated A Transmitter diode B Receiver diode C P...

Page 17: ...ase pawl engages with the switching core B of the rinse aid lever so that when the actuator C is activated again the dosing plunger A is lifted off the rinse aid Technical specifications Value Unit Rinse aid capacity 120 ml Setting 1 6 1 each ml Detergent capacity max 45 g See Actuator for additional technical specifications A Dosing plunger D Magnetic float B Switching core E Reed contact optiona...

Page 18: ...nd magnesium are bonded to the surface of the exchange compound while sodium ions are released into the water When all sodium ions have been replaced with ions of the hardness constituents Fig 1 the capacity of the water softening system is exhausted and it must be regenerated 4 10 2 Regeneration To make the ion exchanger functional again a concentrated saline solution sodium chloride is conveyed ...

Page 19: ...ed in the water softening system If the regeneration valve is actuated the water stored in the regeneration chamber is conveyed through the water softening system Technical specifications Designation Value Unit Nominal voltage 230 240 V Frequency 50 Hz Resistor 2 45 kΩ A Water softening system B Regeneration valve ...

Page 20: ... surface filter F The surface filter F is attached together with the combined coarse H and fine filter G to the base of the pump sump D via a bayonet catch Blocked spray nozzles Firmly attach coarse H and fine filter G to the pump sump D A Lower spray arm F Surface filter B Supply pipe to upper spray arm G Fine filter C Rinsing tank H Coarse filter D Pump sump I Hinged cover optional E Micro filte...

Page 21: ...e A temperature controller B connected in series disconnects the appliance at 85 C to prevent overheating In mechanically controlled appliances this temperature switch A isٔ combined with a 65 C temperature controller and housed in one module in electronically controlled appliances it is combined with an NTC sensor negative temperature coefficient and housed in one module The sensor surface is in ...

Page 22: ...sile force of the standard installed springs and maximum pretension of the spring tensioner is no longer adequate In this case stronger door springs see table may be used If furniture doors are very light the door springs can also be replaced by lighter ones A Adjusting screw B Spring tensioner deflection roller C Tension cord Spring force Coloured dot Material no Max weight of furniture d light p...

Page 23: ... generate a very high starting torque After the switchover phase the windings are then in series one behind the other i e each winding is connected to half the mains voltage The motor is then adjusted optimally to the operating pump and generates very little noise apart from a very low power consumption for label AAA as the windings are connected to half the mains voltage during operation Operatio...

Page 24: ...e flange actuates the safety pressure switch D for the heating element C If the pressure drops the heater switches off The heating position is overtravelled preventing dry heating Technical specifications Designation Value Unit Nominal voltage 230 240 V Frequency 50 Hz Power 2150 W Resistor approx 22 Ω A Clicking safety device NTC 85 C safety switch E From the circulation pump B Membrane F To the ...

Page 25: ...pump The detergent solution pump is flange mounted on the pump sump It pumps the detergent solution out of the appliance Technical specifications Designation Value Unit Nominal voltage 230 240 V Frequency 50 Hz Resistor approx 110 260 Ω Delivery height 0 9 m Delivery capacity 10 l m ...

Page 26: ...s inside the machine are collected in the base pan Any leaks in the supply hose are conveyed to the base pan via the leakage water hose Once a predefined level has been reached in the base pan D the float uses a switch lever to actuate the safety level switch A which then electrically switches off the filling and safety valve At the same time the drainage pump is switched on the detergent solution...

Page 27: ...egeneration Before each regeneration step the electronics check whether the capacity of the water softener is adequate for a complete Normal Programme Sequence If not regeneration starts The water softening system is regenerated and rinsed through during the wash cycle The regeneration valve on the water softening system is opened for this purpose The stored volume of water flows into the salt dis...

Page 28: ...ing disc has three openings and locks the relevant water channel to the spray arms Water pressures vary depending on the position of the locking disc Rinse type Water pressure Alternate rinsing Top basket or bottom basket high Two in one Top basket and bottom basket medium Change between two in one or top basket throttled low Fig 1 Alternate rinsing Fig 2 Two in one Fig 3 Top basket throttled two ...

Page 29: ...ing cycle with the saved water for subsequent drying support The special programme sequence is activated if the electronics module detects low rinse aid the rinse aid refill indicator is deactivated The Intensive drying additional function can still be selected but it has no effect on the rinse aid temperature The maximum temperature increase is 3 K 5 1 2 Application area 3 in 1 detergents have an...

Page 30: ...nd There are two options If the module is not installed in the correct position the optical fibres in the panel may break off 6 1 1 At the bottom of the support plate Bosch Siemens Neff The module is attached at the indicated points 6 1 2 A the top of the support plate regional brands e g Constructa Balay Pitsos The module is attached at the indicated points ...

Page 31: ...bles Strip the insulation off the cable ends Push the shrink fit hose over the cable Connect electric cables to the insulating sleeves 1 After fitting warm the connectors until the shrinkage process occurs and the hot melt adhesive comes out of the ends of the connectors 2 Push the shrink fit hose over the connectors and also warm until the shrinkage process is complete 3 ...

Page 32: ...optional 6 3 1 Removal Catch tappets are located on the rear right and left hand sides of the worktop Press up the catch tappets Push back the worktop and lift off 6 3 2 Installation Insert worktop into the guide Push forwards until both catch tappets engage at the rear ...

Page 33: ...lates A stamped out of the inner door off the catches B Press the released dispenser inwards 6 4 2 Installation Align retention plates A towards the centre so that all catches B lock securely into position Before installing the seal lubricate with washing up liquid Press dispenser outwards into the inner door Ensure that all retention plates A are firmly attached again Attach electrical connection...

Page 34: ...low sensor 2 from the water inlet Loosen the hose clip 3 Remove supply hose 4 Remove connector plug from reed switch 6 4 4 Installation Connect the supply hose 4 to the flow sensor 2 Attach the hose clip 3 Connect the reed switch connector plug Attach the flow sensor 2 to the water inlet and secure it with the securing clip 1 Install the left side wall ...

Page 35: ...or to installation lubricate the seal with washing up liquid Connect pump to the pump housing Leaks Ensure that all 4 locking hooks in the pump housing are attached Sluggish or blocked fan impeller When the pump is changed the spacer ring attached to the motor shaft must be transferred to the new pump Rotate pump to the left into the pump housing until the clip engages Fold up the base pan and ins...

Page 36: ...talling the slide ring seal Sluggish or blocked fan impeller Ensure that the spacer ring is re attached to the motor shaft Press slide ring seal into the pump housing Manually rotate fan impeller firmly onto the motor shaft Attach sealing ring Install circulation pump ...

Page 37: ... and base plate Press lever 1 to right and disengage Rotate detergent solution pump forwards 2 After a quarter revolution remove detergent solution pump to right 3 6 6 2 Installation Insert detergent solution pump Rotate detergent solution pump to rear until the locking lever engages Screw on base plate and base panel ...

Page 38: ...ng screw from the hinge plate towards the base pan as well as the adjusting screw if fitted Unscrew hinge plate A from the frame Pull up the hinge plate A and remove Remove the spring clamp D Two piece hinge bearing bush Open the bearing bush C by disengaging the spacer G with a screwdriver see sketch One piece hinge bearing bush Open the bearing bush C by bending up the clips H with a screwdriver...

Page 39: ...e hinge plate A Insert hinge plate A into the base pan Screw hinge plate A to the frame and base pan Insert hinge lever B with the bearing bush C into the hinge plate A Screw inner door to hinge lever B Attach tension cord E to the hinge lever B Screw on side panels angle strip base panel and outside door ...

Page 40: ...g the base pan until the water softening system can be removed from the plug and socket connections at the water inlet and from the level sensor housing 13 Pull out the reed switch 14 Take out water softening system 6 8 2 Installation Please note before and during installation Place the seal on the filler neck of the salt dispenser Insert sealing rings into the plug and socket connections Put rubb...

Page 41: ...nnection in the base pan 6 Place the appliance on its back carefully remove the base pan and loosen the catch between the level sensor housing and the water softening system 7 Disconnect the circulation pump with the rubber support from the base pan 8 Open the base pan until the instantaneous water heater can be screwed off the pump sump 9 Unscrew the instantaneous water heater 10 Release the catc...

Page 42: ...n ensure that the seal lip is pointing towards the middle of the rinsing tank otherwise there will be leaks in the area of the door adjust the length of the seal to the circumference of the container cut the ends of the seal at an angle 45 place the seal on the base of the container Splash proof protection for the lower corners Press in the seal evenly and without any kinks ...

Page 43: ...3 von 60 6 11 Diagnosis aids Transparent door Material no 21 7116 appliance dimension 81 cm Test prod Material no 340730 remove the components from the module before measuring the resistance Protective gloves Material no size 9 340728 size 10 340729 ...

Page 44: ...inlet to check remove both drainage hoses Pump is buzzing audibly Pump mechanically blocked foreign objects or damaged pump Clean pump or if required remove pump To improve the retention of foreign objects it is recommended to insert the auxiliary filter 428216 into the coarse filter Pump is not running See also pump is buzzing or running audibly Tap was turned off during drying the heat exchanger...

Page 45: ...ure consumers test programme and check according to circuit diagram Follow safety instructions Eradicate creepage distance and transition resistance look out for leaks high current cables must not be extended Advise customer Customer specifies the chemicals if required change product with citrus aroma or recommend aroma dispenser mat no 460742 Advise customer concerning the new aroma Advise custom...

Page 46: ...he tap Advise customer and refer to plumber have pressure reducing valve fitted Rattling noises during the rinse cycle Spray arm is striking the utensils Advise customer utensils not arranged properly Alternating noises in the rinse programme Alternate rinse technology top basket rinsing 50 sec changeover 5 sec bottom basket rinsing 30 sec utilising water points Alternate pumping detergent solutio...

Page 47: ...ch deposits Analyse with diagnosis case 340070 iodine solution Water soluble or regeneration salt residue Analyse with diagnosis case 340070 dest water Discoloration colour residue e g tea tomato juice coffee lipstick etc analyse with diagnosis case 340070 chlorine bleach Detergent residue Analyse with diagnosis case 340070 dest water Water insoluble residue damage to utensils ...

Page 48: ...partially blocked Drainage hose kinked No detergent dosage or insufficient dosage wrong programme selected Unfavourable arrangement of the dishes etc very large pieces in the lower rack e g pots avoid holders dish racks twisted Spray arm is blocked by dishes or cutlery Advise customer sieve insert and care Clean parts if necessary refer customers to correct sieve insert Clean parts if necessary re...

Page 49: ...es not heat up Only bottom basket is rinsed Check level sensor function implement filling process Remove non return valve check valve and seat for dirt and if required clean Check circulation pump Check heating circuit according to circuit diagrams note pressure switch on the instantaneous water heater the circulation pump cannot build up adequate pressure if there is insufficient water in the app...

Page 50: ...al hardness in the wash and final rinse cycles Does not regenerate Untreated water valve does not open appliance is filled with untreated water only Adjusting hardness range Advise customer use phosphatic detergent Adjust regeneration position and conduct performance test observe drainage of regeneration dispenser Check regeneration valve carefully mechanical valve stem electrical actuation coil C...

Page 51: ...on Starch deposits on the utensils Underdosing of detergent wrong detergent Wrong programme selected too weak programme selected Appliance connected to hot water water inlet temperature too high Advise customer use enzyme detergent Advise customer select correct programme Check hot water connection setpoint lower than 60 C advise customer if required connect to cold water ...

Page 52: ...s Leaking salt dispenser cover check screw fitting regeneration dispenser is dispensing slowly Leaking regeneration valve regeneration dispenser is dispensing slowly Regeneration valve continuously actuated Initial clouding of glass can only apparently be wiped off Detergent solution carry over Combination product Advise customer eliminate leaks Check valve and or valve seat Electrical check with ...

Page 53: ...tact time of the oxidation bleach is too brief for a short running time and at low temperatures Silicate deposits only on glasses not to be removed Final rinse dosing set too high can be rinsed off with water Discoloration due to sulphur compounds in the air and in various food remnants Advise customer increase amount of detergent Use detergent containing chlorine bleach Recommend machine detergen...

Page 54: ...me Incorrect application of tablets note use in dispenser or cutlery basket Spray arm nozzles blocked filters locked Dispensing device in spray shadow large pan etc positioned at bottom left Check draining non return valve Detergent very lumpy washing effect and dissolving performance reduced Advise customer dishwasher not loaded properly Replace spring of dispensing device Advise customer Tablet ...

Page 55: ...for glasses low temperature 50 C Advise customer do not switch on the appliance and wait a few hours before removing the utensils e g over night Mechanical damage scratches or breakage Scratches caused by contact points surfaces with other utensils Advise customer avoid touching utensils when loading Utensils pale Utensils pale Advise customer use dishes that are suitable for dishwashers Rust on t...

Page 56: ...vise customer Check heating circuit according to circuit diagrams note pressure switch on the instantaneous water heater the circulation pump cannot build up adequate pressure if there is insufficient water in the appliance Advise customer quick programme is without drying cycle drying level option has been set too low Advise customer tablet is unsuitable for this programme Plastics retain very li...

Page 57: ...n_d doc 25 05 11 Seite 57 von 60 7 6 Circulation pump Customer complaint Cause Remedial action Circulation pump does not start After a prolonged idle time the seal set may stick to the pump wheel The seal set must be replaced ...

Page 58: ...energy saving Triac on the module does not switch properly smoke traces may be visible on the module Mains plug Cable harness scorched wire broken Advise customer See Consumption rates or Alternate rinsing technology Before replacing the module always measure the connected consumers valves actuators etc Repair defective plugs on electronic control units with plug repair set 495928 Replace defectiv...

Page 59: ...58300000120057_ara_en_d doc 25 05 11 Seite 59 von 60 8 TECHNICAL SPECIFICATIONS 8 1 General technical specifications Voltage frequency 230 240 V 50 Hz Connected load 2 3 kW Heat output 2 15 kW Fuse 10 13 A ...

Page 60: ... 65 Normal 65 Eco 50 Gentle 40 Quick 45 Quick 35 Prerinse Duration in min 103 95 140 140 155 71 30 30 20 with a half load 95 95 125 140 68 30 30 Current consumption in kWh 1 40 1 00 1 35 1 35 0 80 0 70 0 70 0 50 0 10 with a half load 1 20 0 90 1 25 0 70 0 65 0 65 0 45 Water consumption in litres 20 11 18 18 13 14 10 10 4 with a half load 13 10 11 12 10 10 10 Intensive 70 Normal 65 Eco 50 Gentle 40...

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