How to replace thermistor on heating element Hotpoint WD420

Change electronic board it is what will cause this problem if you checked all ducts an fan and still heats board is bad

There is a seperate element for the water heater. so likely to be a faulty heater or thermistor which is fastened toi the element
You really need a test meter to determine which part is faulty.

Hi

Error F03 in Hotpoint washer means that the thermistor is open. When thermistor turns bad it will not let the water to heat or in some cases will boil the water to extreme temperatures. You’ll need to replace the thermistor to resolve this issue. The thermistor is located in the motor control unit. Inspect the element if its open circuit, it should read 1500-1800 ohms on Rx1 on the multimeter, if not then element is bad. To check/replace the element remove the lower rear panel. Hope this helps...

Daniel

Yes F-03 indicates a faulty thermistor (it's inside the heating element at the back). Before calling an engineer, just open the bottom rear panel and check that the connector has not come loose (OR IN MY CASE FALLEN OFF COMPLETELY). This can happen if there is a spin cycle that runs out of balance big time. (two thin wires on a square unit about 5mm in size fitted to the middle of the heating element).

yes test the thermostat for continnuity with a multimeter , about 25 bucks for a new 1 ,can order from Repairclinic.com

The fault is probably due to thermostat or element not working.
Remove the top cover, and you will see the heater manifold on the top right of washer, this is where the stats and element are located.
Also check for broken wires.

Hi


Thanks for using FixYa. By error F03 in Hotpoint washer we mean that the thermistor is open. This will not let the water to heat or in rear cases will boil the water to extreme temperatures. You’ll need to replace the thermistor to resolve this issue. The thermistor is located in the motor control unit. Also check the element if its open circuit, you’ll get a reading of 1.5-1.8K ohms on the multimeter, if not then element is bad. The element is also located in the motor control unit. You can check them by removing lower rear panel.


Please do rate the solution and revert for further assistance.


Thanks

Rylee

Your dryer exhaust may be full of lint. You may have a defective thermostat. Sounds like you need to call a repair specialist if cleaning out the lint from the exhaust ductwork doesn't help.

Check on the back of the drum for a thermal fuse or relay. Common fault on tubledryers is no power to heating coils becuse of blown fuse or most likely the relay to heating coils is dirty. have to be cleaned about every 2/3 years depending on use.

Check first the thermal fuse.

Test heating element to ensure is not grounded, and staying always on. Test the fan and ventilation system.

If you find no fault in there , then test the timer control board.

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