Isolate Mains Power to appliance as per TOPs P4
Observation:
Inspect Flow Switch Diaphragm for splits or damage.
NOTE:
Please also check that the Venturi and Bypass Pipe (part of the boiler flow switch water section) is clean and clear of obstruction.
NOTE:
Please also check that the Venturi and Bypass Pipe (part of the boiler flow switch water section) is clean and clear of obstruction.
