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Locating pump on Baxi Back Boiler

We have a back boiler (Baxi Bermuda VP) and after bleeding the radiators last week (with the system switched off), as they often fill with air, they worked fine for a couple of days but now we have no heat in the downstairs radiators and a very small amount of heat from the rdiators upstairs. A friend who worked for Transco has suggested it may be the pump but we do not know where this is located. We have look under the floor boards in the bedroom above the fire but it doesn't appear to be there. Can you suggest where the pump might be? and whether this may sound like the problem?

Many thanks
Louise

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  • louise_winte Dec 16, 2008

    We eventually found the pump under the floor by the boiler and replaced this plus the 3 way valveand we are now up and running. many thanks for the help!

  • ballydoyle Jan 04, 2009

    baxi heater keeps shuting down

  • sharontrev Jan 13, 2009

    the pump on the backboiler now and again flicks off then back on

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Hi this problem sounds like a pump problem. now if its not in the airing cupboard, sometimes they can be besides the boiler in a cupboard or under the floor where the boiler is sited, or boxed in in a dummy casing either side of the boiler/fire unit.
i suspectthatthe pump is stuck & needs releasing or worse case scenario a new unit fitted.
The reason you mentioned about frequently getting air in the system is condusive of sludge build up or the pipe-work configuration is not installed correctly giving rise to air being drawn into the system & posing future probs such as component failure.
If the pump is sited under the floor by the boiler it is at risk of collecting sludge as its at the lowest point in the system.

Recommendations re-site the pump if possible & look to have the system power flushed, to assist the life expectancy of the system

Kindly

Richie

Posted on Dec 15, 2008

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Also u mite like to check ur FE tank usually in loft Feed & expansion tank its the small one has a curved pipe running to it from above usually after a while the ball valve gets stuck and the water level gets low and causes problems,free of or replace

Posted on Oct 17, 2013

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