Potterton promax 15he

[nysk2008]

hi all

the above boiler is in lockout. far left light solid red, two other lights flashing green. mi's state pump or pcb in a round abound kind of way - any other hints and tips of a poss fault which these lights could flag up or am i looking in roughly in the right area?

Cheers

 

[Ermintrude]

Owa heating pumps gash? Faulty thermister ? Full of water? How clean is system

 

[Aquazone]

If you are getting overheat on these, (after all obvious as Ermi said) take the sump off heat exchanger will prob be full of crap. Also check comb box seal as sometimes heat leaks to air box and trips stat on fan giving OH.

Edit: Also check insulation behind HEX

 

[nysk2008]

cheers all

 

[Ermintrude]

If you are getting overheat on these, (after all obvious as Ermi said) take the sump off heat exchanger will prob be full of crap. Also check comb box seal as sometimes heat leaks to air box and trips stat on fan giving OH.

Edit: Also check insulation behind HEX

If it's not been serviced by u take seals and insulation bit as she may be pooped