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- 30 Sep 2018
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Hi All,
I need a bit of advice with non-functioning central heating while the hot water still works. The boiler isn't in my house so I'm not 100% familiar with it and it's the first time it's really been used since about last April.
If I turn the hot water on at the controller, the boiler kicks in. However, if I turn the hot water off and then turn the heating on, you can hear the relay in the controller click, but the boiler doesn't kick in. If you turn the thermostat, you can hear the switch inside it click and a multimeter applied to the terminals shows that the thermostat is switching the supply voltage to the bolier.
At first, I thought 3 way valve although finding it it's proving very difficult. The boiler's a back boiler behind a fire on the living room so I'm guessing it could be built in to that but in the past, when I've had a 3 way valve fail, both the heating control and the hot water controls still managed light the boiler, the radiators just didn't get very hot.
Now comes the fun part as the house was struck by lightning in August so I'm wondering of something has fried. Given that the controller seems to switch fine and the thermostat seems to switch, I'm not sure where to start.
Any suggestions? .
Thanks in advance.
I need a bit of advice with non-functioning central heating while the hot water still works. The boiler isn't in my house so I'm not 100% familiar with it and it's the first time it's really been used since about last April.
If I turn the hot water on at the controller, the boiler kicks in. However, if I turn the hot water off and then turn the heating on, you can hear the relay in the controller click, but the boiler doesn't kick in. If you turn the thermostat, you can hear the switch inside it click and a multimeter applied to the terminals shows that the thermostat is switching the supply voltage to the bolier.
At first, I thought 3 way valve although finding it it's proving very difficult. The boiler's a back boiler behind a fire on the living room so I'm guessing it could be built in to that but in the past, when I've had a 3 way valve fail, both the heating control and the hot water controls still managed light the boiler, the radiators just didn't get very hot.
Now comes the fun part as the house was struck by lightning in August so I'm wondering of something has fried. Given that the controller seems to switch fine and the thermostat seems to switch, I'm not sure where to start.
Any suggestions? .
Thanks in advance.