heating works but no hot water Heatslave 18/25. Help!

Mellow1 · 16 Jun 2016

My 85 yr old mother has a Worcester Heatslave 18/25 combi oil boiler. The oil ran out this week, delivered today and the heating works fine without bleeding, but there is no hot water. Any ideas please?

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oilhead · 16 Jun 2016

If boiler is running for CH, your problem is nothing to do with running out of oil. If you cannot follow the fault finding chart, then you will need to consult a professional.

Mellow1 · 17 Jun 2016

thanks Oilhead. I can't find the fault finding chart for this boiler. Any ideas? I could then try to follow it...

Terrywookfit · 17 Jun 2016

https://www.worcester-bosch.co.uk/professional/support/documents

Terrywookfit · 17 Jun 2016

Have you tried resetting the Tank overheat stat.

Mellow1 · 17 Jun 2016

sorry to be dim Terrywookfit, but how do I do that? thx

Terrywookfit · 17 Jun 2016

It's under the control panel . Should have a removable plastic cover over the reset button.
Download the manual for location.

oilhead · 17 Jun 2016

The manual reset would isolate the burner. As the burner is working, then I doubt this is a problem. When I have encountered this problem, it is either the diverter head (the horrible Drayton) or a faulty programmer.