Powermax 185 keeps locking out after 20 minutes

[phillees]

Hi, we have a powermax 185 which goes to lockout after about 20 minutes after getting hot enough to provide heating. I have sat and watched it and it runs fine then bangs a little the green light goes out and ignition tries to light again 3 times but it goes red lockout instead.

Any ideas greatly appreciated. Phil

 

[twgas]

If ignition fails, I would imagine you have a gas related problem and as such you will need a gas registered repairer.

 

[45yearsagasman]

It could be many things on a Powermax. One thing for sure is that no diyer should even think about a repair to these boilers. For peace of mind, get a professional in to look at it. Be prepared for a lot of refusals, as many will not work on them. Spares are becoming obsolete. BG engineers are trained on them. Sorry for not being more positive.

 

[phillees]

Thanks Mick for the reply, it just seems strange that it works fine until its been running hot for a while, this also happened straight after i powered the unit off while i changed a faulty programmer which was a straight swap.

Its the bang that seems to knock out the burner.

 

[dfaz]

I agree don't touch these unless you know exactly what you are doing damn dangerous in the wrong hands, make sure whoever you call out is trained on them I cannot emphasis just how dangerous these can be without proper training.

 

[Agile]

As stated not a DIY repair.

All you could do is visually inspect the flue terminal for damage/obstruction and measure/estimate the flow/return temps at the boiler to make sure the pump is circulating the heating water properly.

Tony

 

[phillees]

Problem sorted, I would never attempt anything with this boiler or any other for that matter but I am ok with electrics and after fitting a new programmer problem sorted, I thought it was too much of a coincidence to develop this fault after replacing the programmer. Thanks anyway

 

[Agile]

Thanks Mick for the reply, it just seems strange that it works fine until its been running hot for a while, this also happened straight after i powered the unit off while i changed a faulty programmer which was a straight swap.

Its the bang that seems to knock out the burner.

I dont see how fitting a new programmer could cause the boiler to bang!

Nor for that matter how you can fix a new programmer when its already new!

Tony