Question about Water Heaters
Posted by Anonymous on
You might try cleaning the flame detector. It sits in the combustion chamber and looks like a small bent nail fixed to the burmer [usually at the rear]. Use a medium emery cloth and make sure that the gas holes around it are clean and clear of debris
Posted on Apr 19, 2014
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Posted on Jan 02, 2017
SOURCE: combi boiler no DHW
if the boiler fires when the tap is opened then the diverter valve is working ok it must be a blocked plate heat exchanger which is the stainless steel rectangular block inside the boiler connected to the pump and the mains cold water.
it will be blocked on the central heating part probably with black scale. it is possible to clean out but sometimes it is better to just change the plate. but remember to flush the system as well or the same thing will happen.
Posted on Mar 30, 2009
I know of no limitations on the temperature of the inlet water for any boiler. The warmer the water, the less energy it will take to heat it to desired temp and the colder the water, the more energy it will take. Extreme temps over an extended amout of time in either direction can stress a unit and could possibly, only possibly reduce service time.
Posted on Mar 31, 2009
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