Mend > Home Heating Systems

whats wrong with my boiler ?

i have a glow-worm ci combi boiler when i turn on the hot tap the boiler fires up ,plenty of cold water comes out but no hot....at the same time the heating flow pipe gets hot ......the heating works fine on its own ...any ideas ?

ononotagain
January 2010

Glow-Worm Heating, Home Heating Systems Boiler Combi Turn Hot

black div motor or no power to drive motor. take off and run ch and dhw to see if movement on motor.

no1tech
January 2010

thanks henry...is it the valve head or thecartridge or both ?

ononotagain
January 2010

Your diverter valve is faulty.

Henry
January 2010

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