Good Morning Chaps,
I have Halstead Finest boiler and the safty lockout light has started to come on, disconnecting the power supply appear to get rid of the problem.
However when I put the hot water on, the radiator also start to heat up also, on checking the micro-switch for Primary Flow switch (2 violet wires) , this always appear to be closed, when by default if the Central Heating is off should be in the open position, according to the manual.
The question is what is likely to cause the switch to stay permanently closed and how do I fix it?
Advice and guidance would be appreciated.
I have Halstead Finest boiler and the safty lockout light has started to come on, disconnecting the power supply appear to get rid of the problem.
However when I put the hot water on, the radiator also start to heat up also, on checking the micro-switch for Primary Flow switch (2 violet wires) , this always appear to be closed, when by default if the Central Heating is off should be in the open position, according to the manual.
The question is what is likely to cause the switch to stay permanently closed and how do I fix it?
Advice and guidance would be appreciated.