New home - Problem with Back boiler

[konfor]

Hi guys, Just moved house and it has a back boiler fitted. The fire is a glow worm co-ordiante G (cant find any info on the boiler). Anyway, when i light the boiler it stays on for only ten minutes before going out. The water tank is in a bedroom and there is an emersion heater below it, this has a power switch next to it (but emersion is seperate from backboiler, right?) Anyway i just wonder if anyone has any idea on what the problem could be.

 

[kevplumb]

pump is stuck

 

[konfor]

ok, thanks. so where is the pump likley to be?

 

[gas4you]

Quite often in behind a false panel beside the fire place the boiler is fitted in , or in the airing cupboard.

 

[Rob]

Usually near the boiler in adjacent cupboard or under the floor!

 

[konfor]

ok, i found the pump, its a grundfos red thing and has a dial with 3 settings. if i alter the setting (its at 3 now) what will happen?

 

[gas4you]

If its stuck then nothing at all

Undo the large silver center screw and insert a flat bladed screwdriver and see if you can turn it to free it.

Put a towel under it first as some water will run out.

 

[konfor]

right i did that and it turns ok. i've just lit the boiler so if it still goes out, new pump needed or some other cause?

 

[gas4you]

You need to check for 230V at the pump live terminal if you are comfortable testing live electrics.

 

[konfor]

will do, just need to search the mountain of boxes for the multi meter! thanks for all your help !! x x

 

[Ansumstan]

Hi I had this exact same problem at the weekend and it turned out to be a blockage in the pipes just above the pump. Worth looking into...