Hi there,
First time posting so hope can be of assistance.
My central heating comprises a Baxi Duo-Tec Combi HE with a Honeywell Evohome Controller (latest Wifi version), wireless relay box (BDR91) and 6 Radiator Controllers (HR92).
The problem I am experiencing, since setting up, is that when the heating switches off at the set off time, the boiler then fires randomly up again anywhere between 5-15 minutes later, despite the Controller showing the correct “off” temperature that I have set at 10C for all the rooms. Room temperatures will still be in the region of 20C so there should be no need for the boiler to fire up. Also, ambient temperature where boiler is located is not low enough to trigger frost protection.
The boiler will then continue to cycle on/off every 5 minutes until I either push the reset button on the relay box or turn the boiler off then on again. The bathroom radiator does not have a thermostat and gets very hot during this so it appears the boiler is going into heat mode and not just the pump cycling. It seems to correct itself for a few days after a reset then starts playing up again until I reset the boiler by one of the two methods above.
Wondering is it more likely to be the boiler or the Evohome setup?
Any suggestions?
Thanks
First time posting so hope can be of assistance.
My central heating comprises a Baxi Duo-Tec Combi HE with a Honeywell Evohome Controller (latest Wifi version), wireless relay box (BDR91) and 6 Radiator Controllers (HR92).
The problem I am experiencing, since setting up, is that when the heating switches off at the set off time, the boiler then fires randomly up again anywhere between 5-15 minutes later, despite the Controller showing the correct “off” temperature that I have set at 10C for all the rooms. Room temperatures will still be in the region of 20C so there should be no need for the boiler to fire up. Also, ambient temperature where boiler is located is not low enough to trigger frost protection.
The boiler will then continue to cycle on/off every 5 minutes until I either push the reset button on the relay box or turn the boiler off then on again. The bathroom radiator does not have a thermostat and gets very hot during this so it appears the boiler is going into heat mode and not just the pump cycling. It seems to correct itself for a few days after a reset then starts playing up again until I reset the boiler by one of the two methods above.
Wondering is it more likely to be the boiler or the Evohome setup?
Any suggestions?
Thanks
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