My Bosch dishwasher is about 21 years old (model SPS5122, slimline , integrated door, data plate shows E-Nr SPS51225/07 FD 7003 102422 ). It begins the cycle OK but after about 15 minutes (when it begins to heat the water, I think), it trips the power protector on my mains consumer unit. What is the problem likely to be? Is it worth repairing (another intermittent fault is that it sometimes does not open the soap dispenser).

SOURCE: Dishwasher soap dispenser won't open during cycle

both have a wax motor on them that needs to be replaced you just remove the panel and replace the wax motor is what its called

SOURCE: Bosch 24 in SHU66C05UC/14

http://www.applianceaid.com/boschDW.html

i hope this link helps you diagnose your problem

Thank you for using Fixya

SOURCE: Bosch #SHU9955 Integra dishwasher for

The problem was evident during short cycle (primary cycle used) and changing to regular cycle used and back to short cycle seems to have corrected problem.

SOURCE: Clogged water dispenser in Bosch dishwasher

Hi, Logmanup (slight bouts with dyslexia, sorry)

By "spinning water dispensers", I assume you mean the spray arms, right? OK... if they are getting clogged with debris it would be nice to know what kind of debris. Pieces of broken glass? Plastic? Lime scale? Iron? And yes, when they get clogged they won't rotate, won't allow pressurized water through and therefore won't clean the dishes.

For the purpose of this solution, I'll assume that there are little white particles clogging up the jets on the spray arms. This indicates hard water and lime scale build up.

Other than completely disassembling the entire motor/pump assy. (you really don't want to go there), the best way to clear this out of the system is to use an over the counter chemical called Dishwasher Magic or something similar. If the lime scale build up is really bad (and it sounds like it is), use a couple of bottles to start with and follow up with a bottle per month thereafter.

As an aside... If I assumed correctly about the lime scale build up, that means that it's also affecting other appliances as well. Mainly, your hot water heater. If you haven't done it before, please read this to perform maintenance on it. And a product something like this for your washing machine.

I hope this was helpful. Let us know if this works or not. If not, please write back and we'll go a little deeper.

SOURCE: soap dispenser flap not opening

Not a solution but exactly the same problem. I should have sent the machine back (I bought mine about 2008 too) but by now, 2010, the machine is a complete waste of time and money. The soap dispenser fails to open every time, wasting money, water and my patience because I then have to hand wash after all. will try the suggested oil trick, but it was obviously a bad design to start with.