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Hi, Quick question,I have a Danfoss BHO 64 control box which needed replacing as it was not bringing in the solenoid,everything else is working (spark etc) I have had a equivalent replacement part but when fitted the opposite happens i.e no spark but the solenoid kicks in.My question is re...

Hi got a small problem ,been called to a house with a system boiler which is part of a sealed central heating system which indirectly heats a dual coil cylinder the second coil is from a solar panel.The hot water is gravity fed.There is a twin channel programmer but no other controls in the...

Hi I need a little help, I need a new diaphram for a diverter valve on a Eurocal exterior 90/115 oil boiler .I cannot find any spares list in the installation manual or anything on the net,any help in tracking down this part would be very welcome. :(

Hi ,called out to a heatslave 12/18 which has been idle for many months.To cut a long story short I got the boiler working.The problem is it is only heating up the hot water.The diverter valve is working as is the pump.All the wiring has been checked all the valves are open everything is...

I have a worcester heatslave 15/19 oil boiler which has a rising pressure problem.The pressure gauge rises slowly when in use and then drops when not in use.I have disconnected the filling loop and checked the expansion tank which seems to be fine ie correct pressure and no water showing .The...

Re Thermsaver 70/90 external boiler. The boiler is working fine on the heating side but the dhw flow/pressure is very poor(approx 40 mins to fill a bath).Can anyone suggest a reason for this .The mains feed to the boiler is 3 bar with a flow rate of approximately 17litres / min which seems more...

I,m having a problem with my Grundfos negative head pump.It supplies an upstairs bath and sink with hot water only (it,s a single impeller pump amazon 3 bar).The problem is that there is a very long delay before the water comes out from when the tap is turned on, as long as five minuets somtimes...

Hi, I,m new to the forum, I have a Boulter Economy oil boiler with a Riello burner .The boiler fires up no problem and runs fine for approx 3/4 of an hour but then begins to pulsate and eventually stops completely.Can anyone shed some light on this problem.