Potterton Suprima 80L lockout

[Agile]

If I remember correctly the gas valve is supplied with raw rectified AC.

How your meter responds to that will depending on its circuitry, the better ones approximating to the true RMS valve and the cheap ones tending towards the peak ( 1.414 x 230v DC ).

Tony

 

[bertscrog]

Decided to buy the pcb over the counter (£182) as didn't want to wait any longer without proper heating and water.
Got home and found that my son had got it working by switching prog to on and it starting first time on 'reset'!
Then I saw a post on another forum about BG doing boiler repairs for fixed fee = £144 all inc for my area.
So my quandry now is do I fit the pcb and take the fairly likely gamble it is the board or do I cut my losses, sell the ocb on e-bay and get BG in for a complete repair with guarantees and all!

You've got to laugh.

Cheers.

NB new fault diagnosis instructions say should get 250V dc at valve!

 

[Agile]

I seem to remember Paul at Potty telling me it should be about 220 VDC on a true RMS reading meter.

There was a gas valve solenoid fault and that can blow the PCB. The winding resistance goes lower due to shorted turns but apparently the applied voltage goes up in that case.

Tony

 

[gazthepottertonengineer]

that british gas deal is only if you buy your gas and electric from them
Do you

 

[bertscrog]

Gaz,

BG will come out to non-BG customers, BG customers get a £12 discount.

Cheers,

Gary.