Bosch SHU4322 Review

Overall Rating

Queit, washes well when working

Poor service, design flaw in control module

My model is actually a Bosch SHU4322 but the control module seems to be the same as the ones described for other models. Bosch's part no. is 264877 and on one PCB there is a card mounted relay with a number AJS1311 on it.
One day the machine did not clean well at all and I found out it did not heat the water. I called the Bosch service center in Stockholm, they were vague and said it could be anything from heater elements, thermostat, heater switch, control module or wiring. They would charge 90 EUR just to send someone to diagnose the problem and then there would be more for parts and work. So I decided to take the unit apart and try to find the problem.
After some time I found the burned contact on a PCB with the soldering gone and black spots around it. I thought that the relay probably was broken and I would have to find a new one to replace it. Put in AJS1311 in Google and found this site. After reading all these comments I was encouraged to just resolder the contact (using some extra wires to make a "heat sink" as someone had suggested.) Now the machine works fine and washes with hot water again. Don't know for how long.
I will contact Bosch in Sweden about this. I have been very constant and bought Bosch for every home appliance we have, including electric handtools - because I have had confidence in their quality and in the past their service has been very good. But this.....