renewed diaphragm but cannot get heater to ignit

dave p, March 2010

try taking the cover off and igniting it manually.

ali, May 2011

I have a britony II {written in Roman numerals II) bought around 1981.I have the installation details with part nos but cannot find reference to this model only ones with 2 or other addons
Can you help find the correct part list.Also engineer having trouble with water leaks from new washers and diaphragm. I think he has used ordinary tail washers and the dia was a new one.
Help!
Thanks Alastair

a w mc leod, April 2010