Hi no there are no leaks at all, the fan just comes on by itself more often evening or at night, some times the burner ignited with the temperature set to zero.
Thanks for the reply, it's 15 years old the temperature knob is on the , and the manual timer on the right.
We do not use the timer we just use the temperature knob to turn on off.
Apart from the intermittent fault it works fine.
Hi thanks for the reply, it's at least 15years old temperature knob on the left and manual timer on the right which we never use.
We turn the temperature knob to zero at night and turn it on if needed in the morning.
Boiler fan runs for no apparent reason even with thermostat turned off, occasionally the heating turns on even with heating turned to zero and no taps turned on .
Any idea please.