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- 14 Jul 2018
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I am an Electrician and I have just been called to a Grant Vortex Eco that will not turn off.
All the external controls are correct. The 2 control wires from the wiring centre to the boiler switch the 230v on and off when you request HW or CH. However, with both of them off the boiler still runs. I believe it is the CH that is stuck on because the radiators get hot. It is safe enough because it does turn off with the boiler thermostat when the rads are up to temperature.
My guess is a stuck control relay, I told her to call a heating engineer but no one will go out until the new year. Anyone any advice on the internal electrics of these particular boilers? Thanks.
All the external controls are correct. The 2 control wires from the wiring centre to the boiler switch the 230v on and off when you request HW or CH. However, with both of them off the boiler still runs. I believe it is the CH that is stuck on because the radiators get hot. It is safe enough because it does turn off with the boiler thermostat when the rads are up to temperature.
My guess is a stuck control relay, I told her to call a heating engineer but no one will go out until the new year. Anyone any advice on the internal electrics of these particular boilers? Thanks.