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Thanks again Ian, recently was informed that the pump had been plumbed in on the return circuit rather than the flow, after posting pics here for another issue so would that be exasperating the issue ?

Great, many thanks

Hello, any recommendations on where I can readily get a length of 150mm white guttering Im in Surrey but willing to collect, only need 2.4m but respect it may well be a standard 4m length. Thanks

Ian, am i right in thinking that if the rads are heating up then the heating of the hot water in the cylinder is being compromised or does it continue to heat the water and the warming of the rads is an unwanted side effect - basically am I getting less hot water than I should ? Thanks

Ian, I'll have a look and see if I can decipher the pipework above the boiler- thank you

Hi, wondering if anyone can shed any light on the following; I have recently replaced both zone valves (Honeywell V4043H) models as complete units hoping to eradicate the issue of the heating circuit warming up when the HW circuit is the only one selected. However the issue still persists. It...

its 3 feet exactly

Hi, the top of the coil is approx 3-4 feet below the bottom of the F&E tank, I can measure it to be certain tho. Thanks

Having had the hot water cylinder recently relocated to the loft the following is now occurring - There's a continuous gurgling and sloshing of water in the flow and return pipes and pump when the boiler fires for the HW circuit so clearly its sucking in through the expansion pipe i assume...

Hi Terry/anyone with a thought ... Wondering if I can call on your experience once again - There is now a pretty continuous gurgling and sloshing of water in the flow and return pipes and pump when the boiler fires for the HW circuit. Its definitely air. Ive connected a hose to the drain point...

Have that in place already and will give it a close looking over in the morning after the showers been run

Problem solved! Decided to take the cover off the opposite side and surprisingly the Impeller was rotating freely, so tried the original side again and it too was now free. Put back together and powered it up and again just the humming, so I figured maybe it was basically overtightened so I...

Just plumbed in a Stuart Turner 2bar twin unit having been sat unused for several months. All Im getting is a humming from the motor nothing else. Ive read its either, Start capacitor, PCB or most likely a stuck pump. The suggestion is to rotate the pump shaft. I assume this is the shaft onto...

Ill keep an eye on it for now but thanks for all you time and advice, if it goes wrong again in theory i know where the problem is. Its a very awkward set up indeed, and been told also that the pump should be rotated through 90 degrees as its currently in upside down... and its been plumbed into...

Managed to get a pic of the top of each, I assume they should be identical spec units as I'll order replacements? Wont do any harm to replace both at least I'll know the history from here on. Will have to drain the system down again to fit three more new rads in a day or two - Im dreading the...

Bit of good news! I rocked the levers on both port valves rapidly and tapped both units several times and Hey Presto the green light comes on and she's fired up! Also no air lock is apparent seems to be running smoothly. Went to the cylinder and can hear the water boiling in the tank. So one...

Hi, The only DHW is whats left from the last time the HW circuit was working - Sunday night. The two port valves are HoneyWell pics attached and yes the one on the left feels like two settings on the lever and the on the right it feels like three options - cant see the tops... Cylinder...

Hi Terry, the gremlins persist. The HW call on the timer had and still has no response from the boiler, it sits in standby with the orange light illuminated. The CH fired up off the timer and still works fine. Leaving the PCB as the last option, could there be a problem with the zone valve...

Thanks a million for your time and your thoughts, appreciate it. Ill keep an eye on it and see if it corrects itself fully by morning and I'll update you tomorrow. Thanks again Terry

Kind of, when I call for HW theres still a lot of gurgling water around the boiler/pump pipework and then it returns to standby so wont stay on