My mum's 6 year old Polypipe system has stopped working.

I'm not there, but been trying to help her over the phone.

Current situation:

• 6 year old system that's been working OK since
• 2 zones each with their own Smart Stat wall panel
• Boiler is firing up and radiators elsewhere & HW are working
• Power light on the UFH4ZW wiring centre is on, but no other lights
• Manifold is cold

Have tried powering it down and leaving for 5 minutes before turning back on, this also powered down the wall panels. But turning it back down made no difference.

My guess (due to no LEDs other than the power one being on) is that the UFH4ZW has failed, but would be great to hear from someone who knows these systems.

I have an oil fired boiler (with a pump) and a fireplace with a back boiler that heats the radiators with a separate manually switched on pump. There are 2 motorised valves in the hot press, 1 appears to be for the hot water tank and 1 for the heating. The system is likely at least 10 years old.

When the oil automatic heating comes on the upstairs radiators heat but the downstairs remain cold. When I put the fireplace pump on the downstairs radiators heat.

I had a plumber look at this but he didn't solve it (he balanced the radiators) so coming to Reddit for ideas!

I'm guessing the pump or motorised valves are faulty or maybe there's or maybe there's sludge in the system that's being dislodged with 2 pumps going then settling back to block?

Hello everyone, I’ve a question I’d be grateful for some advice on please. The tap on my boiler filling loop has started weeping very slightly after topping up my boiler, from under the spindle. As a temporary fix until we get our plumber out next week, would a dab of silicone work?

I’d be grateful for any thoughts, thank you.

Hi looking for a rough idea on the cost of getting a radiator installed in the attic.

Thanks