I have plenty of hot water but no heat in my radiators?

I had this a number of times - it was the 3-way valve (part number 235838) sticking. I cleaned it and lubricated a few times which worked for a short period but eventually replaced it when it stuck every few days. Since replacing it,about 18 months ago, the fault has not occurred since.

Duncan Clarke
June 2008

knackered thermostat?

iain
May 2008