Question about Water Heaters
The boiler wont light its got ignition, but wont firer, have noticed both pins come out on the diverter valve, when it trys to go.
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: heatslave diverter valve
clicking rads are due to pipe expansion when getting hot.
If the hot water [secondary circuit] gets hot and the boiler stays on [does not keep going on and off] even with a constant low water flow then the diverter should be ok.
there is a valve to prevent the primary circuit [central heating] [ CH] from sending water to the rads. this or its control may be at fault.
Both the CH pipes to & from the boiler should have manual valves to turn off. do this then try the hot tap-full on. If the boiler goes into overheat mode and the overheat stat kicks in to turn the boiler off -- then :-
Check also the heat exchanger, it may be furred up especially if you are in a hard water area. It means taking it off and manually checking [pour water through] If you're lucky it will be just muck to be forced out with hose pipe pressure, if not a new one
Posted on Sep 06, 2009
does the fan start up?
sounds like a faulty gas valve. has there been an interuption in your gas supplie?
hope this steers you in the right direction
Posted on Dec 19, 2010
Testimonial: "The feedback is very helpfull. Kind Regards Tracey"
SOURCE: I have a HEAT MAKER
Check the flow switch. Small black box lower left hand side as you face the from of the unit. Try to jump the connection and then see if it fires up. If it does, replace your flow switch. The flow switch prevent the boiler from firing because it is not sensing the water moving through the pipes. The boiler won't fire if water is not moving through it.
Craig @ Aggie Plumbing & Service
Posted on Jan 14, 2011
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