I hope someone can please help me out with the problem below.
I have a 10 year old Vaillant 282 Turbomax boiler and recently due to problems changed the following:
1. main heat exchanger
2. Pump
3. Serviced Diverter valve with Vaillant service kit
The DHW works fine but the heating is 'overheating' to specified temperature within minutes. I have set the front dial to 6.5 and when the heating turns on the temperature gauge shoots up to this temperature setting in about 2 minutes. Then the boiler runs for about 10 mins. After that it cycles 'on' and 'off' but for short duration only. Although i still manage to get the house warmed up there is obviously something wrong.
I changed the temperature sensor but that did not make any difference.
I am suspecting either the control board or maybe Differential pressure switch ?
Any help greatly appreciated.
I have a 10 year old Vaillant 282 Turbomax boiler and recently due to problems changed the following:
1. main heat exchanger
2. Pump
3. Serviced Diverter valve with Vaillant service kit
The DHW works fine but the heating is 'overheating' to specified temperature within minutes. I have set the front dial to 6.5 and when the heating turns on the temperature gauge shoots up to this temperature setting in about 2 minutes. Then the boiler runs for about 10 mins. After that it cycles 'on' and 'off' but for short duration only. Although i still manage to get the house warmed up there is obviously something wrong.
I changed the temperature sensor but that did not make any difference.
I am suspecting either the control board or maybe Differential pressure switch ?
Any help greatly appreciated.