Got home this afternoon to no heating system.
No power to the timer, reset all breakers and replaced the 5A fuse in the spur to the timing clock. (Honeywell ST7100, about 28 years old).
All other electrics in house OK.
Can anyone help us diagnose the problem so we know what to fix / replace.
Electricians / heating engineers, please contact me on 07899805423.
Anyone got anyone they can personally recommend?
Thanks in advance