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TBH, I do know of one or two long standing trade members who cannot hack the new site unfortunately. 🙁
Not usually, entering the diagnostic mode would do.
OOB is more of a problem for single people who don’t often have enough for a full load.
Induction motors are generally more reliable and much quieter than brush gear motors. The bearings and the tachometer can fail. Again not common failures and those parts hardly ever available as spares. If it did spin then that would suggest the motor is fine. Did it revolve at all on a wash programme?
Could it possibly have been an OOB (out of balance) fault? If the drum does revolve without a load on a wash programme ask her what was the last load she had in the machine that failed to spin. Single, heavy items or small loads of one or two towels etc can cause OOB.
With regard to the third connection on the pressure switch, it is used to trigger the overfill circuit. I did suspect this but couldn’t access the tech info yesterday. It doesn’t register a click when you blow into the switch though.
Heater resistance is not important, it is the insulation that is the cause of this problem. Testing with a meggar at 500v is what is needed, a basic multimeter is not enough. Your testing does point to a faulty heater though. 🙂
mace wrote:
. No measurable leakage to ground. Didn’t do a high voltage test, as I don’t have the gear for that.
It is the only way to show up a faulty heating element, it is a known cause of ‘apparent’ drain faults on Hoover machines.
Ignore salt/rinse aid. Start button flashing is F04. A fault on the heating circuit, most likely the heater itself but could be thermistor loose or pcb failure.
Be sure to fit a new relay, or if needs be, carefully drill out the two small rivets holding the thin top on the relay, remove the plunger and clean up the contacts.
Not really a practical proposition TBH. The FZ78 is over 90{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} obsolete and the FZA81G also has a lot of parts listed as obsolete now. The control panel for the FZA81 is still available but at around £90 on the off chance it may fail it would not make any sense in my book to buy this. A lot of faults on older freezer equipment are related to the system and compressor repairs are not for the DIY minded.
A replacement for the old Hotpoint should be considered but there is no guarantee that a new one won’t fail . 😉
Far better to PM your email address as suggested. Posted in open forum leaves you wide open to spammers etc. 😉 I will edit it and send you the info later.
Jim.
