I have a Fagor Combi Boiler model FE24E. Fault is that it will not
ignite. It makes all the usual noises, clicks etc, but no flame. You
can hear the ignition spark, click away during fire up, and there is a
spark, but no flame.
There are two sealed chambers inside the boiler.
The larger outer one, contains the combustion chamber, heat exchanger,
air fan pump at the top of the heat exchanger, electric safety
thermostat and one of the water pipes. There is also a round plastic
assembly which has two smallish rubber pipes coming out of it and
going into the inlet and outlet flue, it also has two wires connected
to it, going back to the control box, I am not sure of the function of
The smaller inner chamber is where the combustion takes place, it has
two parallel probes going into it, which are the spark gap for
igniting the gas. It also has another single probe positioned over the
flame, with a single wire going back to the control box. The technical
manual I have for the boiler is in Spanish, and they identify this
single probe as a "Electrovalvula modulante" which googles out as a
When I first starting working on the boiler, I thought it was an
ignition spark problem, so I changed the Spark Transformer and the
Spark Gap probe inside the combustion chamber, after changing these
parts I thought I would fire up the boiler with the cover off the
inner combsution chamber, and bingo, spark igniter sparked and the
flame lit, great I thought. So I put the cover back on the inner
chamber, and I thought I would give it another test, but this time it
would not fire up. I could hear the spark clicking away inside the
chamber, but no flame, so I took the cover off again, and it started
working again? Now if I put the cover partially back on, it will fire
up, but not when the cover is fully tightened up.
I would very much appreciate your help with this please, TIA
Regards Mark in Spain.