My CH has stopped and the only cause I can find is the pilot-light on my Potterton Netaheat boiler which has gone out. Only problem is - it's a sealed unit and I can't work out how to re-ignite it. Any ideas?

Dave Horn, January 2005

Dave did the proposed suggestions work?what was the solution to your problem? I have a similar problem! Thanks

alfi, April 2006

Two recent problems with mine: (1) boiler overheating and cutting out, traced to sludge accumulation in system and poor water circulation (solution - use sludge cleanser and flush system); and (2) failure to ignite, caused by cracked insultation on spark igniter wire. N.B. safety warning issued by HSE about these boilers, HSE Safety Notice 00/16, concerning possible dangers of delayed ignition. This boiler requires positive air pressure to ignite, not a vacuum as in more modern boilers. See http://www.ogc.gov.uk/embedded_object.asp?docid=1197

Jim Harvey, February 2005

Turns out it was the fan that had packed up which meant it wasn't generating the energy needed to ultimately activate the ignition.

Dave Horn, January 2005

Rich, thanks for the tip but water and pump both ok.

Dave Horn, January 2005

check you have water in the system and pumps working as that was the trouble with mine....no water and the pilot light will not light

Rich, January 2005