Heatline combi - water but no CH

[Melvyn Newton]

Grateful for any help with this one..

Just fitted a replacement timer and expected all to be well, but still no central heating. Boiler fires up fine and LCD panel shows it to be heating water, some noises from the pump suggest its moving water round the system, but radiators are stone cold. Boiler delivers hot water to taps fine.

Model is Heatline CaprizPlus 28a. Behaviour suggests its the diverter valve that's not working (is only thing I can think of), but surely I would get an error message if that was the case.

Thanks in anticipation.

 

[CBW]

surely I would get an error message if that was the case.

Nope, you wouldn’t. Could be diverter, but could be another issue. What controls are being used?

 

[ianmcd]

Just fitted a replacement timer and expected all to be well, but still no central heating.

there have been some vague posts on here but yours could be in the finals, why did you fit a replacement timer, what timer have you fitted what other controls do you have thermostat etc, sorry crystal ball is in for polishing this week