Hi all, looking for some guidance.
A simple heating system. potterton suprima boiler, gravity fed feed and expansion, around 18 years old. Its powering a 3 bed detached, hot water done by immersion only.
have set boiler stat just short of max, and room stat at 25, but house rarely get above 18.
all radiators are warm but not hot. All were bled the other day and one had about half air in it, other than that all were fine.
Yesterday evening, after turning programmer off for an hour, then firing it up again, all rads became hot, too hot to touch - it raised house temperature lovely!
But today, back to warm only!
The boiler flashes green to indicate that its reached temperature, but the flow and return pipes from the boiler are warm only, not hot.
Any ideas?
A simple heating system. potterton suprima boiler, gravity fed feed and expansion, around 18 years old. Its powering a 3 bed detached, hot water done by immersion only.
have set boiler stat just short of max, and room stat at 25, but house rarely get above 18.
all radiators are warm but not hot. All were bled the other day and one had about half air in it, other than that all were fine.
Yesterday evening, after turning programmer off for an hour, then firing it up again, all rads became hot, too hot to touch - it raised house temperature lovely!
But today, back to warm only!
The boiler flashes green to indicate that its reached temperature, but the flow and return pipes from the boiler are warm only, not hot.
Any ideas?