new bathroom install no hot water.


Postby RichardWh » Sun Feb 17, 2008 7:28 pm

Installing new bathroom suite in old terraced house.

Found the hot and cold supplies in....turned water off....... installed gate valves to get better control.

Ive got all the shiny new pipework installed. There is no hot water coming out of either of the two legs for bath and basin. The hot water is working fine elsewhere in the house. IE There is a click noise from inside the combi, the the water pump and heater kicks in and a few seconds later hot water comes out.

The new gate valves appear to be working OK. So now i'm confused as the hot water should at least fill up enough to pressurise my pipework so I can check for leaks on this side.

I've even opened the ball valves on each leg try to cause a leak on purpose.

The cold water is working fine, and is of a good pressure and flow rate.

<thinks out loud> Could it be an air lock? If it is is an air lock how can I clear it???
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Postby htg engineer » Sun Feb 17, 2008 8:54 pm

I don't understand -
you say it's a combi ?
with ball valves ? (do you mean ballofix)

If it's a combi - not very likely to be airlocked at mains cold water pressure.

Crack the nut open on the gate valve - before the gate valve. Gate valves are prone to shearing off inside.

Definately connected to 'live' hot water pipes ? not old one's off an old installation or tank.
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Postby RichardWh » Tue Feb 19, 2008 2:49 pm

Thank you HTG engineer. I've looked again at my installation.

I connected the cold into some redundant pipework and connected the hot onto the cold pipework.

It took at while for the penny to drop. I get muppet of the day award. :P
RichardWh
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Postby RichardWh » Tue Feb 19, 2008 2:50 pm

Thank you HTG engineer. I've looked again at my installation.

I connected the cold into some redundant pipework and connected the hot onto the cold pipework.

It took at while for the penny to drop. I get muppet of the day award. :P
RichardWh
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Postby htg engineer » Tue Feb 19, 2008 4:42 pm

Easily done - glad to be of some help.
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