Wdf740K F13 Error: Sensor Part Identification

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Hotpoint WDF740KUK F13 error with missing/melted sensor from blower manifold

The problem

A Hotpoint WDF740KUK washer dryer showed F13 and then would not spin or pump out. After moving the appliance, the owner found a loose damaged part underneath and believed it had come from an oblong hole in the blower manifold about one third of the way up from the drum end.

Likely cause

The discussion most strongly supports that the loose part was a temperature sensor/thermistor from the dryer air/heating circuit, likely in or near the blower manifold or dryer heating chamber. One reply also warned it may have overheated and melted because of another underlying fault, but that was not confirmed.

What fixed it

The accepted advice was that it was not the washer heating element sensor and probably not the listed 'lens temp./spin' part. The strongest recommendation was to identify the correct sensor via a parts enquiry using the model details before ordering. Another reply suggested the rest of the sensor may still be inside, possibly lying on or under the dryer heating element. The exact repair was not confirmed in the thread.

Checks to try

• Owner found a loose damaged part under the appliance
• Owner compared the fitting point and said it had to fit a square/oblong hole
• Owner later identified the location as the blower manifold about one third up from the drum end
• Forum member suggested checking whether the rest of the sensor remained inside, possibly on or under the heating element in the dryer heating chamber

Parts or tools mentioned

• Thermistor NTC
• parts enquiry