I have a favorit 86070, which is running but does not heat up. Is this likely to be a heater element failure or PCB?
What is the easiest diagnostic sequence?
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641 Answers
Re:
The easiest way to find it out, is to open dishwasher's rear panel and follow the next steps:
-Check whether you have 115/220V on the heating element tags.
-If you can read 115/220V on its tags, you should replace the element.
-In case you can't read any voltage on its tags, check with a multi-meter for the thermostat's resistance.
-If you can't read any resistance, you should replace the thermostat.
- In case the thermostat is OK, your problem is with the PCB.
Good luck !
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You can test the element which is the most likely failure, but you need a multimeter set to ohms (resistance). An element is a coil that resists electricity and heats up. You disconnect the leads to the heater element and it should show resistance, movement on the dial or a figure on a digital multimeter. If the element has failed, there will be no reading at all.
If it worked before, it will be probably be worth fixing, but don't just blindly buy parts in the HOPE it might fix it. Diagnose and replace, or call a service tech.
The problem when the dishwasher does not heat is failure which requires to remove the qualified personnel and therefore error code is not shown on the display but it is visible in the service mode.
Possible error causes:
faulty heating element
wiring between heating element and PCB
PCB (printed circuit board)
Normal
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Hi,
Check your heating element..
A bad heating element causes many problems in dishwashers…
Check the element by using an Ohm meter. You should get an ohm reading if the element is OK. If the element is open circuit you would get an infinity reading. Just note that "newer" machines do not use the traditional heating elements but do have a (Inductive heater) coupled in line with the hose feeding the top spray arm of the washer. This unit must be cheched by a dealer as a DIY will have dificullty checking it.
The water is heated via a "inductive heater" and not the usual heating elements. This heating device is at the bottom back of the dishwasher and is a cyliderical +/- 15 cm long metal tube. It can easly be removed by the wire clamps at each end. It does have electrical push on connector that just plugs out. If the electrical connections are good I suggest you replace it with a new one (if you can get one).
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