Question about Bosch 24 in. SGS47E02 Exxcel Free-standing Dishwasher
Long or endless wash cycle times indicate a fault in the water heating circuits. The water heater, NTC or the control module are the likely culprits. Some minor dis-assembly and testing will be required to determine the exact cause of the fault. Please can you answer the following simple questions to assist me in solving your problem:
1. Is the water heating?
Start a regular wash cycle, let it run for about 10-15 minutes, then open the door and check for steam or test the water temperature in the bottom of the washer by hand. The water should be hot, not luke-warm.
2. Do you have an RCD fitted in your consumer unit? (fuse/breaker box)
3. Do you have a Torx T20 screwdriver and a multimeter - these will be required for any testing and/or repair.
If your simply looking for a diagnosis and some idea of repair cost, the water heater and the control module are about £100 each to buy. The NTC is about £20 but this is less likely to be the cause of the problem. Labour charges will be extra. The control module can sometimes be repaired with a relatively simple re-soldering of the heater relay pin/s.
All of the above can be replaced on a DIY basis, but the water heater and NTC are best left to a professional.
If you need further assistance, please let me know the answers to the above questions.
Posted on Mar 16, 2011
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Posted on Jan 02, 2017
Hello Catherine, welcome to Fixya. The reason your dishwasher is displaying a "1" is the control has detected a heating error. The error code is displayed by the number "1". Here`s the most likely reason why it has detected the error... The most likely and most common issue with your Bosch dishwasher likely lye`s within`the electronic timer/control, specifically the heater relay solder joint. ( a faulty flow switch, ntc or heater can also cause this, but not very probable ). This is why it runs forever unless pressing the two buttons for "cancel". To repair your unit It will require the removal of the control from the unit and then remove the control from it`s plastic housing and look for a burnt solder contact on the printed circuit board. This will be one of the pins from the heater relay, hence the unit sit`s at "1" ( because it can`t heat to advance or until canceled ) trying to heat the water. **Further to this, if you or someone you know is proficient at soldering, a lot of times it can be remedied by simply repairing the solder...although Bosch recommend`s replacing the control and I don`t pretend to speak on there behalf nor do I profess to know better. This is just my experience (it work`s) and my opinion (why buy new if one can repair ?)** **Please disconnect the power before attempting any service to the dishwasher. If you do not feel comfortable attempting this service, call a local pro, preferably one familiar with Bosch/Thermador/Gaggenau, to service your machine.** Hope this answer`s your question's, let me know if I can assist you further. Thank`s for visiting "fixya" for your repair inquiries. Please take a moment and rate this solution to it's helpfulness to you and leave a testimony if you're satisfied. Good luck. macmarkus :)
Posted on Jun 05, 2010
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