Question about Heating & Cooling
Have u got it set to heating and hot water.....Also check ur circulating pump is working
Posted on Oct 12, 2013
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Posted on Jan 02, 2017
There are 2 Heat Exchangers and 2 Water Pumps on a Combi, at least the one I had when I lived in the UK did.
There is a Thermal Cut Out on both. They look like a Disc, that is Soldered [with provision for connecting the wiring] onto the Hot Water Outlet from the Exchanger to the Pump, to Supply either the Domestic Hot Water, or on the other Exchanger, Central Heating.
If 1 of these fails, the System will start up and when the temp reaches a certain point will trip out the Burner, and continue to Run the Pump until the Temperature drops, and then Stop.
The type I had, had Pumps with a Black front facind nut, this unscrews anti clockwise to release that center, that could be pulled slightly, and used as a Key to turn the Pump Impeller, in the event that lack of use would make it stick, when powered up.
There shouId be a Diagram, inside of the Front Panel, that shows the layout for the whole Internal Water flow, Pipes, Pumps, Safety devices etc. I hope this has helped you.
Posted on Aug 30, 2009
balance the rads.
upstair radiators turn all valves off,heat will then divert downstairs,open valves upstairs 4 turns on locksheilds and number 4 on trvs if u have any.
then if that does not work get a combi or powerflush.
if u cant afford then drain a little from rads,get x300 sludge remover from plumb shop and put in header tank(not hot water tank).
then fill system up and repeat balancing.
Posted on Jan 24, 2010
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