Hotpoint Aquarius 1000 not heating

[clifford1]

My washing machine goes through all its cycles apparently normally, but never at any stage heats the water.
I have tested:
1) Heater element OK.
2) Temperature sensor in the base of the drum varies resistance with temperature, and I have tried replacing with another.
3) Cleaned all contacts and earths
4) Swapped programmer and circuit board with another I thought was working.

It does actually draw current for about 10 seconds at the start of the cycle, but not enough to heat the water. Is this likely to be a programmer fault? It seems odd that the other circuit board has exactly the same fault - perhaps it is a commonplace failure?

 

[jj4091]

What voltage do you read on your multimeter at the element terminals? Can you establish which is the live & which is the neutral by measuring to earth & thus identify whether you are loosing the live or neutral to the element when the current switches off.

 

[clifford1]

Sorry, I don't have the equipment to measure the voltage. I just judged that it was, initially, drawing current because the house electricity meter started wizzing round when the heating cycle started, but then slowed down before any warmth was apparent.

Am I right that the fact that it completes the full cycle regardless of the water not heating shows it can't just be a simple fault like the element failed or a faulty thermostat? Wouldn't the programmer normally need to get a temperature signal before it moved on?

 

[rocks1]

Post up the model number.