The boiler timer is on constant, the boiler thermostat is turned up high, but it is coming on randomly for 5 minutes, not getting hot enough, then turning itself off until its cold again, before coming back on, only when turn it off and on serval times! any clues
glowworm spacesaver 50
- Thread starter chelsea8
- Start date
thermocouple faulty....?
sticking pump 
Why?
G
gassafeman
Is the Hot Water working?
Paul.
Paul.
G
gassafeman
DIYnot Local
Staff member
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