Question about Combi Centre DX - Mango
Please help me, as BG can't.
Basically when we came back from holiday we noticed that two of our radiators had leaked. Subsequently the heating slowly deteriorated, we bled all the rads, but no heating down stairs. Turn off all the rads upstairs and we were getting heat down. Then that slowly got worse.
Called BG homecare and they said they thought it was a cold feed blockage, try draining a downstairs rad, if header tank doesn't drain viola there is your problem.
Tried this, all working fine, so I have rebled all the rads downstairs, then up, no air coming out, just water. Turn the thermostat up, flick the switch to hot water and heating, and make sure that the time dial is set to come on... nothing, you can hear the boiler click, but it doesn;t fire up. the pump is new and is working.
I'm getting really frustrated now, any help would be gratefully received!!
The boiler is an old baxi (the house is 20 years old, so prolly not changed from new), I cannot find a serial / model number anywhere on it. but if it helps the removalable panal is held in by two clips and magnets, when you take this off there is a ignition button and next to it a green switch that you click to the left which has a flame embossed onto it.
First check the pilot is alight, it sounds like it is cause you can hear the boiler click. that click is the gas vale solenoid trying to open, if there is 240-230volts at gas valve when you here the click and pilot is alight the gas valve is broken. if you test for voltage look on the gas valve and see if its 240 or 24v obviously if it 24 v check for 24 volts, let me know
Posted on Sep 12, 2009
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Posted on Jan 02, 2017
does the boiler come on when the hot water tap is run if not change the hot water flow switch or the diaphram in the hot water flow valve it may be split
Posted on Aug 17, 2009
Secondary heat exchanger is blocked on sealed system side.
Remove and de-scale heat exchanger or fit new one.
Posted on Jan 14, 2010
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