Question about Water Heaters
Water really hot, water tank stat fine, boiler makes kettling noise, whats wrong?
Posted by Anonymous on
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Posted on Jan 02, 2017
the problem was solved on my system by replacing thermostatic valve on shower and putting non return valves on hot and cold feed to shower . the problem was caused by cold water getting into the hot water line through the shower hope this helps
Posted on Dec 30, 2008
Remove front cover and look wires which may be resting against the cover.
Trace it/them to their connection/s and make sure the have good contacts.
Turn power OFF first
Posted on Dec 04, 2009
SOURCE: New Vaillant 360 eco plus boiler, takes almost 3/4s an hour for rads to come up to a decent temp. Hot water is fine. Called out install Engineer who is an excellent tradesman but he says everything
We have just had our old system boiler replaced with a vaillant ecotec plus 837 and sounds like a similar working operation to ours. At first I was a little concerned,but I was told by our installer that he was told by vaillant that these very latest boilers size the system on start up for about 10 mins, then take temperature to target flow which you set boiler at. So even by setting target flow temperature very high you still get the initial sizing cycle, which ours was about 30-35c temp. These boilers seem to run biased for efficiency as after a while they modulate the boiler burner down and the radiators run more on the side of warm than really hot like the old type boilers. You also get better efficiency as at lower temperature the boiler condenses better. You will also find you get a more constant temperature in your home rather than over shoots. I was concerned at first, shame there was no info/explanation in user manual as people do need to know that this is normal operation. We are used to ours now, took a month and by the way these boilers can make a creaking noise but was told this normal expansion/ contraction but annoying when sited in bedroom cupboard. Best of luck!
Posted on Nov 22, 2012
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