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as it says on the tin where? Apollo boiler has a over heat stat connected mid way any info appreciated - also do they have pics so that I can confirm the correct unit. thanks

thanks guys had trouble buying the pilot light cap jobby as not corgi registered. Can these be bought online, or isnt this a protected partif you see what I mean. Thanks Nick

Anyone give some more input? Thanks

just checked the stat inline with the thermocouple and its short circuit/closed, so its not that. Also lloked at the stat mounted in the wall of the unit. I take it that this is the high low? anyway it also is short circiut. Is this correct? Thanks

Hi tony oc? open circuit? Is the stat normaly closed or open? To measure this I would have to remove the cover and light the pilot light. Then measure the voltage by removing the end of the thermocouple from the gas valve. This would give me one reading. Where do i take the other? On the...

Not rgi. Electronics maintenance tech. I havent changed the thermocouple yet. It has 2 wires mid way to the valve that connect to a stat. how does this work as appear to connect to the outer copper of the tcouple? What does it do? normally open or closed? Is this the oh?

apollo boiler - noticed pump running or noide, but no hot water - heating. Pilot light out, restarted but when relaesing valve button for lighting it went out. Changed pilot light cover/jet as badly worn. Also heated thermocouple and getting about 25mV going to the valve. Thermostat switch...