Morning all,
I'm hoping some of you knowledgeable folks can help put the warmth back into our place.
We've got a standard 60's-70's 3-bed semi, with a Potterton Suprima 50, radiators in every room, timer & tank in the airing cupboard and a room stat at the bottom of the stairs.
All rads have TRV's, system appears to have been well maintained by previous owners, pump is Wilo Gold RS50 set to 3 (max). Controller is a Drayton (no model number on it), looks reasonably modern.
Anyway, we have hot water OK, and the radiators get warm, pump runs, rads are bled, boiler seems to work... but the house stays much colder than it should be - my last place was constructed almost identically with a very similar but older system, but was always warm enough.
Today, as I've been at home all day I tinkered with the timer to set the CH to ON (HW OFF)... and nothing happened. Pump not run, boiler not start. So I poked about and found that the boiler was claiming a wiring fault to the pump (red light = wiring fault says the sticker).
A bit more poking and I found that when I set the HW to ON the system sprang to life and all was well with the world again...
BUT, watching the warning light on the boiler, it seems to be going in cycles - it will start, run, cut out, the pump runs on for a bit, stops, then starts again, round the loop again every ~2 minutes or so (literally the boiler runs for 1 minute max), on restarting the boiler warning light flashes red (for "lockout") but then clears of its own accord.
This seems to be happening all the time the system is on and might explain why, despite having the heating on, we never get toasty warm.
I'm qualified to wave a multimeter and pliers, although I'm not up to speed on the layout/wiring of heating systems. Is there stuff I can test/check/look at/adjust before we go on the hunt for a professional?
I'm hoping some of you knowledgeable folks can help put the warmth back into our place.
We've got a standard 60's-70's 3-bed semi, with a Potterton Suprima 50, radiators in every room, timer & tank in the airing cupboard and a room stat at the bottom of the stairs.
All rads have TRV's, system appears to have been well maintained by previous owners, pump is Wilo Gold RS50 set to 3 (max). Controller is a Drayton (no model number on it), looks reasonably modern.
Anyway, we have hot water OK, and the radiators get warm, pump runs, rads are bled, boiler seems to work... but the house stays much colder than it should be - my last place was constructed almost identically with a very similar but older system, but was always warm enough.
Today, as I've been at home all day I tinkered with the timer to set the CH to ON (HW OFF)... and nothing happened. Pump not run, boiler not start. So I poked about and found that the boiler was claiming a wiring fault to the pump (red light = wiring fault says the sticker).
A bit more poking and I found that when I set the HW to ON the system sprang to life and all was well with the world again...
BUT, watching the warning light on the boiler, it seems to be going in cycles - it will start, run, cut out, the pump runs on for a bit, stops, then starts again, round the loop again every ~2 minutes or so (literally the boiler runs for 1 minute max), on restarting the boiler warning light flashes red (for "lockout") but then clears of its own accord.
This seems to be happening all the time the system is on and might explain why, despite having the heating on, we never get toasty warm.
I'm qualified to wave a multimeter and pliers, although I'm not up to speed on the layout/wiring of heating systems. Is there stuff I can test/check/look at/adjust before we go on the hunt for a professional?
