Ravenheat RSF84ET main burner won't light


8 Nov 2005
Reaction score
United Kingdom
Fan / pump OK, all voltages OK as per the fault-finding flowchart. Pilot lights but main burner will only light if gas valve sharply tapped with screwdriver / hammer. When the main burner cuts-off once operating temperature is reached- the gas valve needs a knock again to re-light main burner.

(Also- if the ceramic insulation is cracked on the ignition electrode- am I correct in assuming that the pilot wouldn't light? (to settle an argument))
Sponsored Links
New gas valve required.

It started when honeywell changed their production of these valves to China. I think before that they were made in the Netherlands.

Usually if the ceramic is cracked it will arc to the assembly instead of 'pilot ignition area' So although what you say is generally correct it really does depend where the crack is.

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links