Question about Water Heaters
The knock does not happen when the cold water supply to the hot water boiler is shut off.
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Posted on Jan 02, 2017
SOURCE: boiler overheating
the problem there a relay stuck or thermostat bring on the pump & you can lower your high limit aquastat!! also the flow valves can bypass hot hot water risers time to put in a seperate water heater domestic coil are not energy efficient !!!! aquastat high limit set @ 180f deg low limit set @ 140f deg!!!
good luck!!! tim
Posted on Oct 18, 2008
If the hot and cold are fitted the wrong way round then the thermostat on the shower unit cannot operate properly!
Most thermostatic mixer showers have a 'bi-metallic' thermostat, if you supply the hot to the cold and vice versa IT WILL NOT WORK.
It is like wearing the left shoe on the right foot and the right on the left! It doesn't work.
Re-install the hot and cold to the correct supply, and this will sort it.
I hope this helps.
Posted on Jul 08, 2009
I have a 1 bed flat, above an old pub. I have a combi boiler but my water pressure is ridiculous. The shower water runns down the shower head. I'v been told that the cold water feed to the building is split to two boilers, one to the pub and one to me. Im thinking of installing a shower pump in between the boiler and the shower. will this work as my friend says he has done this and it sorted his problem out. I'v looked it up on the net and everything says this does not work. Help please.....
Posted on Dec 24, 2009
your condensation pipe may be frozen get a hairdryer on it or a hot kettle that should sort it thats the whit pipe on the left usualy plastic
Posted on Jan 09, 2010
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