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have been to a whirlpool dw today adg7460. i found the thermal cut out on the heater o/c but the element was ok. have looked up part and i think it comes with the motor an is rather expensive. was just wondering if anyone knows what causes the thermal cut out to go on these heaters as i have never had one of these go before. (it is the cut out which is built into the connector bloc on the heater)
Re: whirlpool dishwasher heater
Could be loose connection which may overheat and burn out but have had a couple just fail o/c.
If the water hardness is not set correctly to the area water the heater can become limed up inside could be causing hotspots and the thermal cut out could be in and out when operating.
Blocked sump filters won’t help either.
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