Heating comes on when it wants! Have MT10RF mechanical thermostat fitted. Clock is set correct and on off times are set correctly and the boiler does come on as it should etc. but it also just seems to randomly come on and heat up the rads for various periods of time. Heating should have gone off at 0830 but was still running at 0850. ANyone had similar problem or know what it could be?
WORCESTER GREENSTAR 24i JUNIOR
- Thread starter daveyboy75
- Start date
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Where is the boiler located?
It might have an external frost stat fitted
It might have an external frost stat fitted
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Hi All,
Many thanks for the replies. I contacted the guys who fitted the boiler and they said there is a problem with a batch of MT10RF mechanical thermostats in the fact that the frequency they were set at is being interfered with. Bosch are sending out new ones to be fitted free of charge to any customers who report that their heating has a mind of it's own. So if any of you know anyone with the same problem then get them to call the fitters or contact worcester directly and the problem will be solved.
Thanks all.
Many thanks for the replies. I contacted the guys who fitted the boiler and they said there is a problem with a batch of MT10RF mechanical thermostats in the fact that the frequency they were set at is being interfered with. Bosch are sending out new ones to be fitted free of charge to any customers who report that their heating has a mind of it's own. So if any of you know anyone with the same problem then get them to call the fitters or contact worcester directly and the problem will be solved.
Thanks all.
Hi Tony,
Yes on the bolier there is an overide light (Green) this should flash twice evry once in a while to indicate that a signal is being recieved. When the clock clicks on or you choose to have it on continuos it will stay on and the fire light will also stay on. In the case with my faulty unit it does exactly the same except there is no call for heat as the thermostat is set to it's lowest of 5 degrees and the clock indicates that it is not time for the boiler to fire up.
Yes on the bolier there is an overide light (Green) this should flash twice evry once in a while to indicate that a signal is being recieved. When the clock clicks on or you choose to have it on continuos it will stay on and the fire light will also stay on. In the case with my faulty unit it does exactly the same except there is no call for heat as the thermostat is set to it's lowest of 5 degrees and the clock indicates that it is not time for the boiler to fire up.
Hi Tony,
Yep , changed batteries. Switched boiler on/off. Reset boiler. Reset all times on clock. Changed batteries again, re synched RF thermostat with boiler. Basically did everything the book told me (and some it did'nt) to do before phoning for help, however had i phoned for help to begin with i would have saved messing about for days as it seems to be a known problem.
Yep , changed batteries. Switched boiler on/off. Reset boiler. Reset all times on clock. Changed batteries again, re synched RF thermostat with boiler. Basically did everything the book told me (and some it did'nt) to do before phoning for help, however had i phoned for help to begin with i would have saved messing about for days as it seems to be a known problem.
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