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tJust for a change, this is not a cry for help, but an attempt to help others.
Called to said machine, and customer reports machin displays F10 shortly after starting. Could not find F10 listed in fault codes, but I seem to remember this fault before on a WF series machine. Last time it was a fault on the pressure switch wiring. On these machines, there is a clip holding the pressure hose to the side of the drum. It was clipped too tight and when the drum dropped, due to overload, the hose ripped the pressure switch off its mounting, tearing all the wires off the pressure switch plug. Naturally they were all the same colour, so I could not re-connect them.Had to buy a new sub-harness[ which naturally had been modified and came without instructions..].
Back to the present fault. I removed the pressure switch from the machine, and attached it to a short length of pressure tube. By the use of a multimeter , and blowing down the tube, I ascertained the following. Viewed from the terminal side with yhe pressure inlet at the bottom, let the terminals be called 1 to 4, counting from left to right. 1 and 3 are normallyclosed and 2 and 4 normally open. If you blow into the tube till you here a click, then 1 and 3 open, and 2 and for close. In this case, 2 and4 did not close at the click. However if you blowed a bit harder after the click, they would then close. In real life. the blow a bit harder is not going to happen. Changeing the switch cured the fault. Strip down of the old component revealed a burnt contact between 2 and 4 Hope this helps somebody, NeptuneRe: Hotpoint WF860
The ‘blow a bit harder’ switch is the overfill switch, it brings in the pump in overfill condition.
F10 is in the error codes thread, page 4 linked to WIDL Indesit codes on page three. F10 = Pressure switch not sensing fault. 🙂Jim.
Re: Hotpoint WF860
Many thanks for that. I may have been slightly wrong in my reasoning, but the new switch cured the fault.
Re: Hotpoint WF860
neptune wrote:Many thanks for that. I may have been slightly wrong in my reasoning, but the new switch cured the fault.
And that is all that matters in the end. 😀
Jim.
Re: Hotpoint WF860
after having read Iadoms post, I bought another new pressure switch to see how it reacted. With the meter-and-blow test, it behaved exactly the same as the one I removed from the machine. However, there are 2 things that puzzle me.
1 The burnt contact in the old switch was in the flood protection circuit, so I would not have expected it to influence the normal operation of the machine. However the other pair of contacts may have had a non visible intermittent fault.
2 This switch is, essentially a 2 stage or 2 level switch . So why is the second stage not accompanied by a second click?
As always there are more questions than answers…
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