hi all, my boiler is buzzing, it lights ok and when i start it up it stops buzzing, any ideas, all 4 of the lights work indicating no probs.
cheers
topbannana
cheers
topbannana
buzzing glowworm ultimate 30ff
- Thread starter topbannana
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There are all sorts of sounds from boilers which can be described as "buzzing".
The simplest one is mechanical resonance of the case and this is often stopped or reduced by thumping the case.
A mechanical stethescope can be used to find the particular component but care must be taken not to contact live parts.
Another cause can be the gas valve, sometimes from a partial failure of a solenoid coil.
Yet another cause can be a partial failure of the smoothing capacitor on the PCB causing the modulating coil to buzz at 100 Hz.
Anything to do with the gas valve should be dealt with by a CORGI registered engineer.
Tony Glazier
The simplest one is mechanical resonance of the case and this is often stopped or reduced by thumping the case.
A mechanical stethescope can be used to find the particular component but care must be taken not to contact live parts.
Another cause can be the gas valve, sometimes from a partial failure of a solenoid coil.
Yet another cause can be a partial failure of the smoothing capacitor on the PCB causing the modulating coil to buzz at 100 Hz.
Anything to do with the gas valve should be dealt with by a CORGI registered engineer.
Tony Glazier
Things which buzz most often have coils in - the gas valve, fan, relays on the printed circuit board.
The first two of those shouldn't have any power on when the boiler isn't firing. You can test that easily enough if you can drive a multimeter (and the instructions!).
The pcb is covered, but you would expect to be able to feel or hear the noise at the cover
The first two of those shouldn't have any power on when the boiler isn't firing. You can test that easily enough if you can drive a multimeter (and the instructions!).
The pcb is covered, but you would expect to be able to feel or hear the noise at the cover
I think it is the coil in the pcb is that expensive!
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The metal casing around the pcb is vibrating, could this still be the gas valve, if so whats the plan of attack
regards
topbannana
regards
topbannana
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