Basic dishwasher troubleshooting Dishwashers produced by the German engineering and electronics brand Bosch are rather reliable and efficient. In case of a dishwasher issue most basic models require the same approach. Identify the problem, then check the possible cause and try to tackle it using the information from the chart below. Problem Possible Cause Suggested Action Washability problems (dishwasherwon't clean properly) › Inappropriate dishwasher detergent used › Blocked or clogged upper/ lowerspray arms › Water doesn't circulate properlydue to debris in circulation motorimpeller › Instruct customer to use a powdered dishwasher detergent (e.g. Cascade powder) › Check spray arms – clean or replace as needed.
In addition to providing replacement parts, RepairClinic.com offers free online troubleshooting information and DIY repair videos. Use our website to choose from a series of problems to discover the likely causes and the correct replacement part(s) for your particular model.
› Twist and remove filter, then remove debris from right side of sump where water enters circulation pump impeller. If debris has jammed impeller, turn off and pull out dishwasher, remove tank, remove circulation motor and unscrew and clean out imp HINT: If impeller is damaged, replace entire impeller assemb ly or it won't seal adequately. › Filter not locked down securely, allowing debris to enter sump. CAUTION: Use caution when removing debris from sump to avoid being cut by sharp debris such as aluminum can tabs or broken glass › Twist and remove filter, then remove debris from sump. Instruct customer to twist and lock filter (cylinder) securely into sump.
HINT: Due to high temperature rinse (161 o breaking down food debris and triple filtering system trapping food debris, filters shouldn't normally clog up. Problem often caused by filter not being securely locked down. Instruct customer to twist and l HINT: Water level will not affect washability as water fill is measured by pressure, not time – water level cannot be adjusted › Drain hose behind dishwasher doesn't have an adequate loop. › Partially clogged air gap, allowing wastewater from prior washes to circulate in dishwasher. › Loop drain hose behind the dishwasher (with the top of the loop) at least 20' above the floor. › Unclog sink air gap.
› Water doesn't drain properly NOTE: Cleaning sink air gaps is not covered under warranty. › Soap doesn't enter dishwasher due to dispenser actuator (A2) failure. HINT: Must pull out dishwasher and remove left side panel to access float switch. › Turn off dishwasher and test actuator – replace if faulty.
HINT: One 'wax' motor operates both the detergent and rinse aid dispensers through a mechanical linkage. The system always resets when door closes. Check linkage by moving it manually. Check 'wax' motor by running a continuity check on its terminals. › Suds or foam remains in dishwasher.
› Too much detergent used. › Improper detergent used (other than powdered dishwasher detergent) › Dishwasher doesn't drainproperly. › Instruct customer to use less. › Instruct customer to use a powdered dishwasher detergent (e.g.
Cascade powder). › Dishes won't dry properly.
› Rinse aid not used. › Instruct customer on using rinse aid – dishes won't dry without it. › Dishwasher has an odor. › Standing water in dishwasher sump. › Unclog air gap. Make sure top of drain hose loop (behind dishwasher) is at least 20' above floor (add a loop in hose if there isn't one).
HINT: Water level in sump should be at or below drain motor cover. › Standing water in dishwasher base. › Minerals in customer water supply › Food debris in dishwasher filters › Turn off dishwasher, drain water manually from dishwasher base and correct source of water leakage. › Recommend customer to get water tested and use an appropriate water softener. › Clean dishwasher filters.
› Dishwasher won't run or indicator lights won't come on. › Dishwasher not turned on › No power to dishwasher › Door ajar or on/off switch failed › Door latch has broken › Indicator light failed › Turn on/off switch on. › Check customer circuit breaker, fuse box or power connections.
› Turn off dishwasher and check door or on/off switch - adjust or replace them. › Turn off dishwasher and replace door latch – instruct customer to not pull on door without pulling latch › Run test program to see if light failed. If so, turn off dishwasher and replace indicator light Water doesn't drain properly › Kink in drain hosec › Dishwasher filter(s) or sump clogged › Drain motor impeller clogged › Straighten or replace drain hose › Clean dishwasher filters or sump › Turn off dishwasher, remove drain motor cover (in sump) and clean impeller. If necessary, remove drain motor to clean impeller. CAUTION: Use caution when removing debris from sump to avoid being cut by sharp debris such as aluminum can tabs or broken glass. › Kitchen sink or sink air gap clogged › Drain motor (m3) failed › Timer (SHU 30/40 models ) or module (all other models ) failed. › Improper drain connection height (.
Circulation Pump – Impeller troubleshooting Can you hear unusual noise while your Bosch dishwasher is working? Do you notice poor washing? These symptoms often indicate a circulation pump issue. With the help of a motor and impeller the circulation pump in your dishwasher forces water up, making it move through the wash arms. If you suspect something is wrong with the pump, use the chart below for troubleshooting tips.
Problem Solution Impeller is frozen Replace impeller with impeller kit # 167085. If not able to replace impeller, place 8mm nutdriver on 8mm stud on impeller and rotate clockwise twice until impeller is freed up (for temporary fix until impeller can be replaced) Impeller cannot be broken loose Replace impeller with impeller kit # 167085. If pump is faulty, replace entire pump assembly Debris binding pump Open sump & remove sump pump cover, then carefully remove debris from impeller. Check for broken glass to avoid being cut. Motor is faulty Check resistance at motor terminals or at control panel ( 7Ω with water switch or 10Ω without). Replace motor if faulty. Bosch SMS/SH series troubleshooting There are over 150 models of Bosch dishwashers with the prefix “SH” in the model number.
Taking into consideration the diversity of the range, it might be surprising that all these appliances need the same troubleshooting approach. Yet it works: just refer to the table below to find out what to do in case of any unusual symptoms. Fault Cause Remedial action “Check water supply” display 9 lights up.
› Supply hose kinked › Tap turned off › Tap jammed or calcified › Filter in the water supply blocked › Filters 26 are soiled or blocked › Waste water hose is blocked or kinked › Siphon connection still sealed › Waste water pump blocked or cover on the waste water pump is not locked in position › Install supply hose without kinks › Turn on the tap › Turn on the tap. Flow rate must be min. When water supply is open › Switch off the appliance and pull out the mains plug. Turn off the tap.
Unscrew water connection. Clean filter in the supply hose. Screw water connection on again. Check for leaks. Reconnect power supply. Switch on the appliance › Clean filters. › Install hose without kinks, remove any residue › Check connection to siphon and open if required.
› Lock cover correctly. Display “Check water supply” 9 flashes. › A technical fault has probably occurred › Switch off appliances with the ON/OFF switch 1. After a short time restart the appliance.
If the problem recurs, turn off the tap, pull out the mains plug and call customer service. Displays flash › Door not closed properly › Close the door. Ensure that no objects (utensil, fragrance dispenser) are protruding over the basket and preventing the door from closing Refill indicator for salt 8 and/or rinse-aid 7 is lit. Bosch Integra, Evolution, SG series troubleshooting Integra, Evolution, and SG ranges are among the most well-known line-ups of Bosch dishwashers.
There are a lot of innovative features in these series, including AVS System that reduces noise during operation, the Suspension Motor, a condensation drying rinse performed at a high temperature, a top rack only cycle etc. Problem Cause Action Dishwasher does not start 1. Door may not be properly latched. Unit may not be turned on.
Unit not reset or previous cycle not completed. Delay start engaged. Interruption of electrical power supply to dishwasher or blown fuse. Child lock activated (select models). The door may have been closed without first selecting a cycle. Water supply may not be turned on 1. Shut the door completely.
Press the main power switch to turn unit on. Check circuit breaker. Deactivate the child lock. Select a cycle and close the door. Check and turn on water supply Dishwasher beeping (end of cycle signal) Default factory settings alert the customer that the cycle has completed by beeping. This feature can be deactivated if so desired. To adjust the volume or deactivate Display does not illuminate or console lights are not on 1.
![Manual Manual](http://gpmhydraulic.com/wp-content/uploads/2015/04/TSPropValvesManual.png)
A fuse may have been blown or circuit breaker tripped. Door not closed or latched. Note: For models with controls on the top portion of the door, the display only illuminates when the door is opened and controls are visible. Check the fuse or circuit breaker box and replace the fuse or reset the breaker if necessary. Ensure that door is properly latched and completely closed. Dishwasher seems to run a long time 1. Incoming water is not warm enough.
Cycle time can vary due to soil and water conditions. Rinse agent dispenser is empty. Dishwasher connected to cold water supply. Before starting a cycle, run hot water faucet at the sink nearest to the dishwasher. Sensors in the dishwasher automatically increase the cycle time to ensure a good wash when heavy soil is detected.
Add rinse agent. Verify dishwasher is connected to hot water supply plumbing. Dishes aren’t getting clean enough 1. Spray arm movement is obstructed.
Spray arm nozzles clogged. Improper use of detergents. Filters could be clogged. Dishes are nested or loaded too close together. Selected wash cycle is not suitable for food soil condtions.
Ensure that spray arm movement is not blocked by hand rotating spray arms. Remove the spray arms and clean according to “Check/Clean the Spray Arm Nozzles” 3. Increase or decrease detergent depending on the water hardness. Clean the filter. Rearrange load such that water spray can reach all items in the dishwasher. Dishes are not getting dry enough 1.
Rinse agent dispenser is empty. (Rinse agent indicator is activated). Improper loading of dishes. Selected cycle does not include drying. Note: Plastic or Teflon do not typically dry as completely as other items due to their inherent properties. Add rinse agent.
The use of rinse agent improves drying. Rearrange load to ensure items are not nested. Rinse and Hold setting does not include drying cycle Note: Select models offer an extra heating options to improve drying performance. Food debris is present at the bottom of the dishwasher.
Food particles are present near the door seal. Dishes left too long in unit before running a cycle. Residual water is present at the bottom of the dishwasher. Drain hose is obstructed. Remove the filters and clean 3. Run a Rinse/Hold cycle if you do not intend to immediately wash the dishes. Ensure the unit has completely drained from the last cycle.
Remove any obstructions from the drain hose by calling qualified personnel. Note: If odor still persists, run the Normal/Regular cycle until it flushes and interrupt the cycle and place an 8 oz.
Cup of distilled white vinegar solution on the top rack and then finish the cycle. Dishwasher not filling with water 1. Restriction in the water supply system. Previous wash cycle was not completed. Delay-start is active.
Ensure that the water supply valve (typically located under kitchen sink) is open and check that the water supply line has no kinks and clogs. Water Leak 1. Door seal could be pulled away from track. Condensation vent is blocked. Improper installation.
Wrong type of detergent results in suds and leaks. Use only dishwasher detergents. If suds still persist, then add one tablespoon of vegetable oil at the bottom of the dishwasher and run the desired cycle. Ensure that door seal is in the track. Ensure that condensation vent is not blocked. Have proper installation verified by qualified personnel (water supply, drain system, leveling, plumbing).
Tub stains 1. Stains on the dishwasher interior are due to hardness of water. Silverware in contact with tub. Concentrated Lemon juice can reduce the build up of hard water stains. Run a normal cycle until it flushes and interrupt the cycle and then place an 8 oz. Cup of the concentrated lemon solution on the top rack and finish the cycle.
This can be done periodically to avoid build up. Ensure that the silverware does not make contact with the tub while running a cycle. Streaks on glassware or residue on the dishes Incorrect rinse agent setting Depending on the hardness of water, adjust the rinse agent dispenser.
Fascia panel discolored or marked Abrasive cleaner used Use mild detergents with soft damp cloth Noise during wash cycle The dishes may not be arranged properly Water circulation sound is normal, but if you suspect items are banging into each other or into the spray arms Detergent dispenser cover will not shut 1. Improper operation of detergent cover. Previous cycle has not been finished, reset, or cycle was interrupted Unable to select desired cycle Previous cycle has not finished. Bosch Exxcel dishwasher troubleshooting Problem Solution Waste water pump Large food remnants or foreign objects which were not captured by the filters may block the waste water pump.
The rinsing water will then be above the filter. In this case: - First always disconnect the appliance from the power supply. Take out top basket 1201 and bottom basket 1281. Remove the filters 1261. Scoop out water, use a sponge if required. Pries out the white pump cover (as illustrated) using a spoon.
Grip the cover on the crosspiece and lift diagonally inwards. Remove cover completely. The appliance does not start. The mains fuse has tripped. The appliance plug has not been inserted. The appliance door has not been shut properly.
![Bosch washer troubleshooting manual Bosch washer troubleshooting manual](http://www.manualsdir.com/manuals/343209/56/bosch-tes71251de-verobar-aromapro-100-kaffeevollautomat-silber-page56.png)
A setting cannot be changed, a programme starts. Wrong programme button pressed. Terminate the programme and start all over again. You did not wait until programme ended. Lower spray arm rotates sluggishly.
Spray arm blocked. The door is difficult to open. Childproof lock is activated. The deactivation instructions are at the back in the envelope Door cannot be closed. Door lock has been activated.
To reset, close the door with greater force. Cover on the detergent dispenser cannot be closed.
Detergent dispenser overfilled or mechanism blocked by sticky detergent residue. Detergent residue in the detergent dispenser.
Dispenser was damp when filled. “Check water supply” display 7 lights up.
Tap turned off. Water supply interrupted. Supply hose kinked.
Filter in the water supply blocked. Switch off the appliance and pull out the mains plug. Turn off the tap.
Clean filter in the supply hose. Reconnect power supply.
Turn on the tap. Switch on the appliance. Water is left in the appliance at the end of the programme. Filters blocked. Waste water pump blocked, cover on the waste water pump is not locked in position The programme has not yet ended.
Wait until programme ends (digital display indicates u'Uu) or implement the “Reset” function. Error code E:22 Filters 1261 are soiled or blocked. Refill indicator for salt 8 and/or rinse aid 9 is not lit. Refill indicator/s switched off. Adequate salt/rinseaid available. Refill indicator for special salt 8 is lit. Refill with special salt.
Sensor does not detect salt tablets. Use different special salt. Unusual foam formation. Handwash liquid in the rinse aid dispenser. Spilled rinse aid causes excessive frothing, therefore please remove with a cloth. Appliance stops during the wash cycle. Power supply interrupted.
Water supply interrupted. Filling valves making striking noises Caused by the installation of the water line and has no effect on the function of the machine. Remedial action is not possible.
Knocking/rattling noise during rinsing Spray arm is striking utensils. Utensils not arranged correctly. Food residue on the utensils. Utensils placed too closely together, utensils basket overfilled. Too little detergent. Rinse programme too weak. Spray arm rotation obstructed.
Spray arm nozzles blocked. Filters blocked. Filters incorrectly inserted. Waste water pump blocked.
Top basket on right and left not set to same height. Tea or lipstick residue is not completely removed. The detergent has an inadequate bleaching effect. Too low rinsing temperature. Too little/unsuitable detergent.