Hello Everyone I've just joined the site and hope someone can help a plumber in need.
Not been on forums before so this is all pretty new to me, if the thread is in the wrong place then apologise.
I got called out to a customers house last week as the central heating wasn't working, on arrival I found a ideal system boiler, open vented hot water cylinder and a filo 3 port heating pack which includes, 3 port zone valve (British Gas), Drayton cylinder stat and room stat.
had a spare sync motor so, fitted to see if this would resolve the issue, Nope.
For example I H/W was selected on valve, when C/H is selected there is no movement on the valve but if I manually move the valve past the manual position it slides over to C/H automatically, micro switch activates then boiler lights, programmer is set to On.
if I turn C/H off on programmer valve stays on heating, when hot water is selected the valve moves automatically to hot water position.
once switched off the heating is selected on programmer again but the spindle does not move until done so manually.
valve head was snap on, so removed and checked again, thinking maybe the valve was seized and it would move the motor still nothing, moved spindle on valve body using plyers doesn't seem stiff in the slightest.
checked wiring at junction box, first off, wiring from programmer seemed to be in check with power getting to box when h/w then c/h and both switched on.
Room stat checked and clicks as should but tried connecting black cable to live to see if there was a fault, thought this would possibly send power to valve but still nothing.
connected wiring back into to original position.
cylinder stat checked seems to be.
doesn't mean to say I'm not missing something but I'm baffled.
Purchased a new replacement Drayton MA1 3 Port valve and just replace complete head, unfortunately still nothing.
the heating has been left in position on the valve so programmer will work and the hot water is being used via emersion heater.
any help on this one will be greatly appreciated
thank you for looking
Not been on forums before so this is all pretty new to me, if the thread is in the wrong place then apologise.
I got called out to a customers house last week as the central heating wasn't working, on arrival I found a ideal system boiler, open vented hot water cylinder and a filo 3 port heating pack which includes, 3 port zone valve (British Gas), Drayton cylinder stat and room stat.
had a spare sync motor so, fitted to see if this would resolve the issue, Nope.
For example I H/W was selected on valve, when C/H is selected there is no movement on the valve but if I manually move the valve past the manual position it slides over to C/H automatically, micro switch activates then boiler lights, programmer is set to On.
if I turn C/H off on programmer valve stays on heating, when hot water is selected the valve moves automatically to hot water position.
once switched off the heating is selected on programmer again but the spindle does not move until done so manually.
valve head was snap on, so removed and checked again, thinking maybe the valve was seized and it would move the motor still nothing, moved spindle on valve body using plyers doesn't seem stiff in the slightest.
checked wiring at junction box, first off, wiring from programmer seemed to be in check with power getting to box when h/w then c/h and both switched on.
Room stat checked and clicks as should but tried connecting black cable to live to see if there was a fault, thought this would possibly send power to valve but still nothing.
connected wiring back into to original position.
cylinder stat checked seems to be.
doesn't mean to say I'm not missing something but I'm baffled.
Purchased a new replacement Drayton MA1 3 Port valve and just replace complete head, unfortunately still nothing.
the heating has been left in position on the valve so programmer will work and the hot water is being used via emersion heater.
any help on this one will be greatly appreciated
thank you for looking
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