R
rcflyers
I have a standard boiler that heats the hot water tank and radiators.
I have a timer which turns the radiator zone valve on at 6.00am then also turns on the hot water tank zone valve at 6.30am.
Recently I have noticed that when the hot water tank zone valve opens to heat the hot water tank, the radiators cool down to a point where they are almost cold.
When the hot water zone valve closes the radiators start to heat up again.
Thanks for any replies.
I have a timer which turns the radiator zone valve on at 6.00am then also turns on the hot water tank zone valve at 6.30am.
Recently I have noticed that when the hot water tank zone valve opens to heat the hot water tank, the radiators cool down to a point where they are almost cold.
When the hot water zone valve closes the radiators start to heat up again.
Our pump is a Grundfos UPS15-50. Do they get tired? If I put my ear close to the pump I can hear a soft crackling/popping noise which sounds like air in it. I am struggling to see how there could be air in there. There does not seem to be an air bleed screw on the pump head (although I could fit one) |
Thanks for any replies.