Bosch dishwasher “tap” light flashing, dishwashers stopped heating water

[aresozo]

Hi there,

My dishwasher Bosch slimline:
E-Nr SPV40C10GB/42
FD: 9611

After almost 3 years of constant use I started getting the flashing tap light. When running the ECO programme (50C) and checking now and then, the water used in the cycle was always cold so I imagine there is something wrong with the heating component or the temperature sensor. (am I right?). Also there is fat residue on whatever was covered in fat.

Question 1: How to run the diagnostic programme in my dishwasher?

Q2: I am an advanced DIYer/tinkerer, will I be able to replace the necessary parts myself? Any special tools required?

Q3: How much would an engineeer charge for this? (Inner London).

Many thanks for your help!

Arek

[electrofix]

if you can use a multi meter the first thing to check is heater continuity

part on your machine is this as its a complete motor heater unit

https://shop.ukwhitegoods.co.uk/12019637-dishwasher-heat-pump

you can see the heater terminals at the top. the large plug with 3 wire. one is an earth and you need continuity between the other 2

Dave

[aresozo]

Hi Dave,

Thanks for your quick reply and sorry for taking ages myself. I only today got around to removing the heater unit and yep, no continuity so I suppose its dead and I will be needing a new one.

For anyone reading this later – this is a super easy job. All you have to do is:
# get your dishwasher disconnected from water and power,
# take the filter and all the bits that you should clean now and then out (the mesh and the filter)
# aspirate all the water from the bottom with a turkey baster or a pasteur pipette (same thing)
# unscrew the little metal side panel on the bottom right hand side as you are looking at your dishwasher.
# take the panel off
and the do what this guy is doing

https://www.youtube.com/watch?v=BKAQmq9MPN8&t=299s

All you need is a screwdriver and a turkey baster

Thanks for your help,
Arek

[electrofix]

to test heater all you need to do is access it via the front and you can access the heater terminals without removing motor. Unless you want to that is

Dave

[Author]

Posts