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Ignition Problem?

My 21 year old Potterton Netaheat 10/16 will only ignite at the begining of each time setting when it has a few sharp hard bangs on the outside of its casing, it will then continue firing up during its setting time span until the start of its next setting. The casing has been off and boiler cleaned. What are the possible causes for this lack of initial igniting

JASON BARKER
January 2008

Potterton Heating, Home Heating Systems Ignition Potterton Time

Thanks mike gasman. It is certainly much better. now starts nearly every time. The wiring was also sprayed with special wiring connection spray. When it does not light up and one then gives a sharp thump on outside casing inline with the pressure switch it lights up - could this indicate that the diapham in the pressure switch has become weak or does the timing switch settings need their electrical wires spraying also. Jason.

Jason Barker
January 2008

potterton netaheat contains asbestos and is a positive pressure boiler...ie if you put the casing back on incorrectly it will not seal and kick pocs back into the room...nicknamed the widowmaker in the trade...get it checked out by a corgi one killed someone last year.....

corgi bloke
January 2008

THE TUBES/INJECTOR TO YOUR PRESSURE SWITCH MAY BE BLOCKED/SPLIT

MIKE GASMAN
January 2008