flexicom 24hx 11 years old.
From cold when I turn on the heating the motorised valve opens as normal and everything comes to life. But after about 3 or 4 mins the valve looses power and shuts - followed by the boiler shutting then the pump is last to shut. At this stage the rads are only just starting to get warm and the boiler indicates around 45 degrees.
Tried resetting the boiler when it is at this stage and also turning off the heating at the timer then back on. It will not fire up until the indicated temp on the boiler is around 30 degrees.
Honeywell valve, pressurised 2 valve system. When it first starts the valve manual leaver is free indicating the motorised valve is working.
The hot water side of the system works fine and I can get the rads hot by turning on the hot water and manually opening the heating valve.
Running a test now with the timer controller set to on and will see if the system starts when to temp indicated on the boiler drops.
Any ideas
EDIT - There are also no fault codes
From cold when I turn on the heating the motorised valve opens as normal and everything comes to life. But after about 3 or 4 mins the valve looses power and shuts - followed by the boiler shutting then the pump is last to shut. At this stage the rads are only just starting to get warm and the boiler indicates around 45 degrees.
Tried resetting the boiler when it is at this stage and also turning off the heating at the timer then back on. It will not fire up until the indicated temp on the boiler is around 30 degrees.
Honeywell valve, pressurised 2 valve system. When it first starts the valve manual leaver is free indicating the motorised valve is working.
The hot water side of the system works fine and I can get the rads hot by turning on the hot water and manually opening the heating valve.
Running a test now with the timer controller set to on and will see if the system starts when to temp indicated on the boiler drops.
Any ideas
EDIT - There are also no fault codes
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