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John
 
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skilso wrote:


Recently a plumber changed our immersion heater and after being
called back twice to rectify afailed thermostat he embarked on other
work nearer home and I ended up changing the thermostat myself.I have
now changed it three times and each time the same problem arose.even
though the thermostat is set to a low temperature the water overheats
and the power wire to the thermostat melts and eventually
disconnects.I have tried a heat resisting wire but this burns too as
do the plastic top of the thermostats.The fuse is 15amp and has not
blown atall during these traumas.The cylinder when connected gets
very hot at the top and is often quite cold below.I wonder if anyone
can suggest something before I purchase another thermostat .Thanking
you ...Skilso



What make of thermostat are you installing ?

Try a different brand, which has suitable British Standards markings on.
Also the temperature does not need to be high for a immersion, and often
they are set way too high, around half way or less on screw setting
should be enough.

J