Hi everyone, I hope someone here can help. Firstly, my heating system consists of:
Ideal Isar combi boiler
Honeywell CM921 wireless thermostat/programmer
Honeywell wireless receiver (can't find any model number, but internet research suggests it's a BDR91)
Now the weather's gone chilly, I tried to switch on the heating yesterday for the first time in months only to find that it won't come on. The thermostat appears to be working correctly, as it shows the correct temperature and when I set the target temperature the flame symbol shows and the transmitter symbol shows briefly.
I suspect the receiver, as nothing happens here. When I press the button on the receiver, the green and red lights illuminate for a split second then go out. If I press the button repeatedly, the boiler display changes from 0 to c, but the burner doesn't fire up. As a result, I have no heating. The hot water works on demand as it should, with no problems.
Can anyone suggest what the problem may be and what I should do?
Many thanks.
Ideal Isar combi boiler
Honeywell CM921 wireless thermostat/programmer
Honeywell wireless receiver (can't find any model number, but internet research suggests it's a BDR91)
Now the weather's gone chilly, I tried to switch on the heating yesterday for the first time in months only to find that it won't come on. The thermostat appears to be working correctly, as it shows the correct temperature and when I set the target temperature the flame symbol shows and the transmitter symbol shows briefly.
I suspect the receiver, as nothing happens here. When I press the button on the receiver, the green and red lights illuminate for a split second then go out. If I press the button repeatedly, the boiler display changes from 0 to c, but the burner doesn't fire up. As a result, I have no heating. The hot water works on demand as it should, with no problems.
Can anyone suggest what the problem may be and what I should do?
Many thanks.
