The heating has been off all winter. The boiler has just been coming to heat the hot water twice a day. We have just turned the heating on by the controller and nothing is happening. The zone relays are not turning on and the radiator valves have moved to their proper temps but the relay is not kicking in. . The relays turn on and off if I press the button. I have also tried using the app and it makes no difference. Can anyone please help?
Evohome not turning radiators on
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How are you getting on, do you have heat yet?
I am getting more and more instances of the boiler doing short cycling now, it happens where there is very low demand (typically less than 10%) and the TRVs aren't open enough to let any water flow, the bypass rad doesn't dump enough heat to stop the boiler locking out when the water overheats. It's very frustrating, I wish there was a way to stop the boiler firing with such low demands but I have no option to control that. I remember there is a setting somewhere when you have a boiler relay configured, but you seem to lose that setting when you configure two BDRs in a Y-plan configuration. It's so frustrating hearing the boiler firing for just 10-20 seconds then shutting down.
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Originally posted by therealfronty View PostI am getting more and more instances of the boiler doing short cycling now, it happens where there is very low demand (typically less than 10%) and the TRVs aren't open enough to let any water flow, the bypass rad doesn't dump enough heat to stop the boiler locking out when the water overheats. It's very frustrating, I wish there was a way to stop the boiler firing with such low demands but I have no option to control that. I remember there is a setting somewhere when you have a boiler relay configured, but you seem to lose that setting when you configure two BDRs in a Y-plan configuration. It's so frustrating hearing the boiler firing for just 10-20 seconds then shutting down.
Do you have an automatic bypass valve fitted, or just the bypass radiator?
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