Strange issue with boiler - (Baxi Bermuda 401 - Vintage) - no central heating!

[Macarius]

Hello folks, just fired up the boiler for the winter and booked in a service and i'm having an odd issue, the hot water heats up fine, scalding hot but the boiler refuses to fire up the central heating. I have one of these old back boilers behind a fireplace which has a separate control panel in the kitchen which lets you choose between CH/HW. When I select only Central Heating the boiler in the living room does not fire up, when I select both it fires up but only heats one radiator (in kitchen) and even then only very slightly at the top.

I have considered switching to a combi boiler every winter for the 10 years I've been here but I've been putting it off until the boiler is out of commission due to the disruption this would cause with vinyl flooring needing lifted etc. Any suggestions or experiences for anyone else in the past or with these boilers in general? I'm not a fan of gas central heating since I grew up with electric (and didn't have to pay the bills!) but the gas fire on it is lovely on a cold winter, can't help but feel its slightly unsafe even with regular servicing and a Co2 alarm.

Any thoughts much appreciated, thank you!

 

[Gasmk1]

Depending how old either you have gravity circulation for hot water and pumped for heating which means the pump has either jammed over the summer not being used or it has failed or you have either an s plan or y plan and the zone or diverted valve is not making the connection on heating. Check pump first if pump ok you need to call out your heating guy

 

[SimonG]

Give the pump a sharp tap with something heavy.

 

[Macarius]

The issue is I can't find my pump, its not in the airing cupboard next to the hot water cylinder, a previous engineer seemed to think it was below the laminate flooring near the boiler in the living room but the only pipe coming up from the floor is the gas pipe.

 

[Gasmk1]

That’s where they quite often were

 

[Deleted member 120897]

If the pump is under the laminate and it’s failed, then laminate will need to come up. However you say you’re getting hot water from it, so I’d be looking at a motorised valve. Also I doubt you have a CO2 (Carbon dioxide) alarm, more like CO (Carbon monoxide).