Dishwasher Thermostat Failed Twice

[Bazil74]

Hi All,

I have a Matsui MF145 slimline dishwasher that is about 3 years old. Up untill a few months ago had no problems. About 3 months ago it was not getting hot and found one of the thermostats to be open loop, replaced both and worked fine. Now about two months on the same thing has happened and the same thermostat is open loop again (presume this is the one shot thermostat?). So not sure if I should replace again and see what happens or something else at fault??

Any ideas??

Thanks in advance

[admin]

Dishwasher Thermostat Failed Twice

Check that you are getting full circulation of water.

Bryan

[Bazil74]

Re: Dishwasher Thermostat Failed Twice

Thanks Bryan, there is definetly plenty of water when in cycle, certainly enough to cover the heating element does that sound ok?

[admin]

Dishwasher Thermostat Failed Twice

What about whilst it’s running?. Take the unit out and watch the water going up the top supply pipe.

[Bazil74]

Re: Dishwasher Thermostat Failed Twice

Just checked, feed pipe to top rotating arm is definitely full of moving water when running. I guess your thinking if there is not enough water it could overheat easily.

[admin]

Dishwasher Thermostat Failed Twice

Are both paddles spinning ?

[Bazil74]

Re: Dishwasher Thermostat Failed Twice

yes they seem to be rotating fine and lots of water flying about when you open the door whilst running. Could it be the control system not turning the heating element off at the correct temp which makes it get too hot and blow the other fuse?

[admin]

Dishwasher Thermostat Failed Twice

Normally due to blockage in the paddles.

[Bazil74]

Re: Dishwasher Thermostat Failed Twice

Ok thanks, I will take them out and give them the once over tonight.

[Bazil74]

Re: Dishwasher Thermostat Failed Twice

had both paddles out and look fine, certainly no bloackages when running under the tap. I guess I just fit a new thermostat and see what happens.

[Author]

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