Donate SIGN UP

Plumbing Issue On C-Heating.

Avatar Image
DTCwordfan | 17:10 Sat 28th Nov 2015 | Home & Garden
11 Answers
First time fire up of the season.

Oil Boiler, radiators bled, heat in all the upstairs radiators, none in the downstairs ones - probably an air lock in there(?), any ideas on how to shift it.....?

Thanks in advance.....
Gravatar

Answers

1 to 11 of 11rss feed

Avatar Image
I know it's warmer in Cornwall, DT ( I should know ;o) ), but that's a long time for the heating to be off. Hot water rises. It's often the case that upstairs rads will heat by gravity alone if the circulating pump is stuck after being idle for so long. Look for the pump (inside the boiler if it's a combi, but otherwise in the airing cupboard or sited next to the boiler...
17:18 Sat 28th Nov 2015
is your C/H pump working properly?
Question Author
well the hot water is getting upstairs, about a 10 foot rise......
I know it's warmer in Cornwall, DT ( I should know ;o) ), but that's a long time for the heating to be off.

Hot water rises. It's often the case that upstairs rads will heat by gravity alone if the circulating pump is stuck after being idle for so long.

Look for the pump (inside the boiler if it's a combi, but otherwise in the airing cupboard or sited next to the boiler if it's a conventional boiler.)

Give it a slight whack with a soft mallet.
Question Author
and the copper pipe is hot on the exit side of the pump......
Question Author
okay thanks, builder - it's close to the boiler - will do that......
The pipework to and from the pump will still be hot from gravity circulation alone.

Hot water isn't pumped. That would work normally.
Also, the pump is switched by the wall stat. A check on whether a voltage is present at the pump would tell you if the stat is "calling."
Question Author
thanks, it's my mother's - seems there are two pumps, one was cold and a wee tap, it now seems to be flowing.......
even during summer I run mine for 5-10 minutes every month just to make sure pump keeps turning even whole system is only 3 years old
Question Author
It reminds me of the story with the plumber who sent in a bill for £150 for ten minutes work. When challenged to break down the invoice, he replied "£10 for the visit and the hit of the hammer - and £140 for knowing where on the pipe and pump to hit the hammer."
Question Author
Might be a good idea, paul - the boiler burner is new (1 yr), the tank isn't, and the rest is crapped out, the plugs are 5A circular pins! That was to be my next port of call to see if a fuse had blown.

1 to 11 of 11rss feed

Do you know the answer?

Plumbing Issue On C-Heating.

Answer Question >>

Related Questions

Sorry, we can't find any related questions. Try using the search bar at the top of the page to search for some keywords, or choose a topic and submit your own question.