...Is this normal? It's worse in some radiators than others, and it stops as soon as I turn any hot tap on. I don't remember this happening in the past. I'm concerned because we had a problem in the summer with the radiators spontaneously coming on when the hot water taps were turned on (even though the heating was switched off at the boiler.) The repairman corrected that problem by replacing a couple of things including the divertor valve(?) and this rushing sound is now making me wonder if there might still be a problem. Surely there shouldn't be any water actually going into the radiator when heating's on,(aren't they already full of water?) and why would the hot tap stop it?? Huge thanks for any advice anyone can offer.
Rushing noise in radiators, stops when hot tap's turned on
- Thread starter Cath H
- Start date
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advice!!!!! give us the boiler make and model then perhapse we can make a trained guess
Although there is a bypass built into the alpha it is only there as an emergency measure against completely incompetent installers. Your system does really need an auto bypass. The sound you are complaining of is probably the trv's almost fully shutting down so that the pump, which doesn't slow down, keeps walloping the water through the small space left by the almost completely shut trv. An autbypass would be adfusted to start compensating at these moments.
It stops when you run the hot tap because the newly fitted correctly working diverter valve shuts off the flow through the radiators and sends it all to the domestic side of the boiler.
It stops when you run the hot tap because the newly fitted correctly working diverter valve shuts off the flow through the radiators and sends it all to the domestic side of the boiler.
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Thanks Paul. Do I need to get something done about it? The noise itself doesn't bother me; I'm just worried in case it's a sign of a problem (or something that might develop into a problem if not attended to).
Thanks again for replying.
Thanks again for replying.
The system might be full of air after the repair. Have you tried venting rads?
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