Dishwasher diverter valve motor....dead?

[dishman]

I removed the heating assembly on my Bosh dishwasher as I noticed one arm was not spinning.
This video explains why that might have been the case...

I have excluded the issues he mentions in the video, something jamming the outlet or missing teeth on the cogs.
So, the only scenario I am left with is a dead motor.



To check, as he briefly mentions in the video, I connected it to a mains supply, and measured 240 volts across the two prongs, just to confirm it was getting power, but nothing. No spinning....so dead?

Just wanted to check that there was nothing I had missed. It should just start spinning away when directly connected, correct?

Finally, I thought I might have a job finding just the motor unit. However, a very faint stamp on the motor show it is an elbi type a valve motor.
While I can't find a stand-alone motor....it appears it is still used in a 3 way valve configuration for some boilers.

Does it look like a match?

Help much appreciated.

 

[dishman]

Just an update, if anyone was interested.

I bought the diverter valve and indeed, the motor is identical.

Not only that, but all the switching mechanism and contacts are identical too!

After confirming the new motor works and the old one is indeed dead, I swapped the motor and switching mechanism and they fit perfectly. This included the shiny new spring contacts as the old ones were also a bit weather worn.

In comparison the old switching mechanism looks very worn.

All I had to do is remove one side of the switching mechanism (the blue actuator arm) in the diverter valve as the one in the dishwasher is only doing a single action.


The only thing I may have to do is re-use the left most prong from the white/older switch mechanism, as it seems to be doing a slightly different job. I shall have to look a bit closer.

After a test, the motor works fine and it was now rotating the valve for the washer arms.

This should mean the dishwasher should be back to spraying with both arms properly.