No hot water on a mixer tap

D

David Fulton

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I have recently moved into a property, the hot and cold mixer taps were the wrong way around, on the kitchen sink. I replumbed them to correct them. Water is coming out fine. Although the hot water is only coming out cold. The other hot taps, are working fine. The hot water is run of a baxi 105e combi. Any suggestions? I have tried putting my hand under the tap and blasting the air lock out, but no luck
 
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Air locks on combi fed taps are almost impossible. unless your combi is playing up (unlikely as other hot taps OK) it sounds like a restriction in the tap or the pipework you have changed, any restriction or partly turned off valve that reduces the flow too much will stop the boiler firing. Are you sure it is not a thermostatic mixer tap?
 
No there are no restrictions on it, if I open it up fully the boiler will kick in and I will get hot water. Its a normal mixer tap.
 
Although there are two isolation valves on the pipe, one may be not working properly, but the pressure seems fine.
 
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I thought you had no hot water at that tap in your first post
 
There is no hot water coming through. If i open it up fully it is but that's to the point where water is going everywhere
 
Combis rely on water flow to open the gas valve either your combi is working fine and the tap outlet has an insert that is causing the splashing (the insert may have been taken out of the other tap for this reason) or your combi is faulty and not responding to water flow properly would be my guess.
 
David Fulton said:
the hot and cold mixer taps were the wrong way around, on the kitchen sink. I replumbed them to correct them.
Click to expand...
Were you getting hot water ok from the mixer before you replumbed them?
Are both hot and cold feeds to the tap at the same pressure?
 
Before I swapped then around there were no problems. Regards to the pressure, I think they should be off the mains, having a combi
 
Has it got flexi hoses on it and are they the same diamiter. There are some that are 10mm internal that are a bit too small for the flow
 
I have just noticed that the black plastic bit from the spout is missing. Do you think this could be an issue?
 
D

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