We have had this problem with the central heating and water system for a while, basically the water pump for the heating and water wont sometime turn off when told to do so via the Drayton control panel, sometimea it would sometimes it wouldnt. We had thought we tracked it down to 1 of the 2 Drayton Actuator, we today bought a new actuator and replaced it and the pump is still not turning off. Any ideas what the problem might be, maybe the control panel isnt sending the signal to turn the pump off? Anything else i can try before paying up for an enginner to come out?
Water Pump Not Turning Off (Drayton System) HELP!!!
- Thread starter lettuce
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No Boiler stays off
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Nah stays on competley until i turn the system off via the plug. I did try the suggestion on this thread, //www.diynot.com/forums/viewtopic.php?t=102537&postdays=0&postorder=asc&start=0
Both of the orange wires are live however!??
Both of the orange wires are live however!??
Sorry just checked and the boiler DOES come on aswell when the pump is running, will it still be the overrun on the bolier
If the boiler is not firing then it won't be a zone valbe fault.
Ok the boiler is staying on now. Right - make sure HOT WATER and HEATING are OFF at the programmer. (if a suspected faulty programmer sending signals, try turning down both room and cylinder stats to lowest setting/off).
If boiler and pump still fire/run - I'd suspect a faulty zone valve.
Ok the boiler is staying on now. Right - make sure HOT WATER and HEATING are OFF at the programmer. (if a suspected faulty programmer sending signals, try turning down both room and cylinder stats to lowest setting/off).
If boiler and pump still fire/run - I'd suspect a faulty zone valve.
Ok have turned the cylinder stat (dont have a room one) to its lowest setting and the pump still fires up. When you say zone valve are you refering to the Actuator? As i replaced the ZA5 Drayton Actuator with a new 1, do you think its worth swapping out the other actuator to see if its that one thats causing the problem and not the 1 i thought it was?
Yes turn the power off, remove the suspected faulty one and replace with the good one/new one and see.
Is the programmer set to OFF for heating and hot water? As no room stat, a fault programmer could then send power straight to pump/boiler.
Is the programmer set to OFF for heating and hot water? As no room stat, a fault programmer could then send power straight to pump/boiler.
Ok bit of progress, it has always been the hot water that we have had the intermitent problems with, and thats why i thought it was the hot water actuator that was the problem, so thats the 1 i swapped but still had the same problem.
So i have just took the cover of the otheer actuator (heating) and used switch cleaner on the microswitch, and pressed it up and down a few times. The pump actually turned off when asked to do so for both hot water and heating....... for the first 4 times, and now the heating wont switch of when asked to but at least the water side of things is working now!, i have to add that the heating has never refused to turn off in the past its always been the hot water thats been the problem.
Are these 2 actuators linked in anyway?, as it is strange that now the heating is refusing to turn off and thats never been the case before. Im going to swap the heating actuator with the actuator i removed and though was the problem 1 in the first place and see how that goes, maybe it was the heating actuator after all even though the heating has never refused to go off....very strange
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