Search results

I have a vitodens 100 wb1a that was I installed in 2005. The boiler started short cycling earlier this year , temperature rising in 2-3 degrees and then shutting down early before cycling again. The engineer added 2 bottles of x800 and it seemed to fix the problem for about 2 weeks. Now it's...

Boiler been working fine for years. Have thermostats on all radiators and therefore no room thermostat. Have Frost thermostat fitted in the garage by the boiler. It (Boiler) stopped working today and have noticed the pilot light is out. It has a Ignition control Box (402a2131). I have tried...