Question about Water Heaters
What does Fault Codes U9, mean on my worcestor bosch 37CDi Boiler? ...
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Posted on Jan 02, 2017
SOURCE: water leaking
it sounds like the gland on the valve is leaking unusual in a valve so young but it does happen. is the valve electrical operated or water pressure. you should be able to get a complete diaphram kit with all seals etc .
Posted on Nov 29, 2008
the problem was solved on my system by replacing thermostatic valve on shower and putting non return valves on hot and cold feed to shower . the problem was caused by cold water getting into the hot water line through the shower hope this helps
Posted on Dec 30, 2008
SOURCE: No central heating back boiler
back boiler run from a gas fire? check the instructions to operate the gas heat to the back boiler not just the fire
I presume that this a fully pumped system - air lock doubtful There maybe on/off valves on the pipes to and from the back boiler [situate close to cylinder] make sure they are on - anticlockwise turn
or there could be a blockage in the outlet from header tank usually in the loft. or If there is no water in it maybe the mains cold feed it is off.
Note if no water in it DO NOT USE the back boiler
Posted on May 03, 2009
not an engineer but maybe a heating compant,, it sounds like you have a relay that has gone bad, you have what we call a winter summer system your domestic water comes from a tank inside the boiler, you might want to think about splitting the system to save you some money in the long run, seperate the water heater from the boiler so you only heat up in the winter, right now you are heating the system that heats your house to get 30 or 40 gals of domestic hot water, it would cost you less by seperating them
Posted on May 30, 2009
most likely the diverter valve.. when hot tap turned on the movement of the water through the valve operates a diaphragm which pushes a pin/button//switch to tell the boiler to fire up
Posted on Sep 02, 2009
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