Why does our mixer tap only provide hot water?

Regardless of the position of the tap, we only get very hot water out. Do we need to replace the tap?

24 Answers

Either there's some debris in the cold water pipe work stopping cold water entering the tap or there's a valve for cold water turned off leading to the tap. If that's all fine then possibly would be a new tap. Craig CLW Plumbing Pontefract.
9th Mar 2016
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No, need to fix the boiler
23rd Nov 2015
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Beenrecommended
35 Reviews, 97% Positive
could be that the pressure from the cold is not strong enough does the cold run on its own if yes then i would go for the hot pressure over running the cold so may need a pump
22nd Nov 2015
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A.L Plumbing
1 Reviews, 100% Positive
Are we talking a single lever type operation, it could be problem with cartridge, if branded or you know where it came from you may be able to get replacement, most taps now have 5 year warranty, so how old is it.
19th Nov 2015
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CM Prestige Heating & Plumbing Ltd
10 Reviews, 80% Positive
The mixer not opening the Cold needs replacing
21st Nov 2015
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bigoakbuilding & handyman services
8 Reviews, 75% Positive
Could replace the thermostatic cartridge , you can normally order them online
11th Mar 2016
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Anthony Rose
118 Reviews, 97% Positive
If your only getting hot water from the tap, this could due to; the cold water cartiage is full of limescale, the tap handle or knob the thread inside has worn, or even a air lock.
3rd Jan 2016
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Building Tigers
1 Reviews, 100% Positive
Hello,
In first someone should check plumbing connection to the tap and if is everything correct you will can start thinking about change tap.

Regards Agnes from Building Tiger
2nd Apr 2016
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Buildingtrades4u
2 Reviews, 100% Positive
check under the tap how many pipes are going to your tap normally mixer taps have a hot and cold feed
24th Nov 2015
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This could be a few different things but I would start by looking at the guts of the taps and clean the parts inside the tap, also check for blockages and scale.
5th Dec 2015
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This problem sounds like it is either there is a problem with the cold water supply maybe the valve as gone or when the mixer tap was first plumbed in it as been plumbed in to the wroung piple work
9th Dec 2015
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GRCON Ltd
0 Reviews
First step is to check if there is a small screw inside the mixer that can adjust the mixing of hot and cold water.
7th Jan 2016
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London Central Gas
0 Reviews
Because its broken.. call a plumber
1st Feb 2016
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Property Maintenance Services
5 Reviews, 100% Positive
If a shower mixer delivers cold water only and not hot, if fault is not external source, these parameters may be responsible: dependent on design, diaphragm/disk valve inside the mixer may be disconnected from the control handle, stiff or jammed or worn-out handle. In most cases than not, this can be due to period of use, clogged solid particles of limestone caused by the hard water during heating up as it commonly seen in kitchen kettle. You either replace or repaired, calling the professional.
23rd Mar 2016
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gulfbuilder ltd
0 Reviews
you have to change your mixer tap or check cold water supply
21st Jan 2016
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i assume you are referring to a sink or bath mixer tap? If so, many model have removable bodies inside them for maintenance purposes. sometimes, these can break down and restrict or even block the flow of water from one side to the outlet. Is it possible for you to add a picture?
29th Jan 2016
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Inside-Out
1 Reviews, 100% Positive
Check to see if cold water supply is on, either by stop cock or isolator on wayer feed pipe.
27th Dec 2015
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John Powney plumbing& heating ltd
3 Reviews, 100% Positive
Possibly may need to replace, although it could just be the tap not opening on the cold side.
20th Jun 2016
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Pro-techs Construction
71 Reviews, 99% Positive
Its a possible fault with washer on cold water supply of mixer.
8th Apr 2016
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Plumbing world
0 Reviews
Hello , that could be tap issue or if not is gonna be Hot water needs to low the temperature from the boiler ,
15th Jan 2017
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Mac-Electrical Services
11 Reviews, 100% Positive
The seals inside the mixer tap maybe perished or limescale build up in the mixer tap itself.
20th Apr 2017
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depends if it is old it could just be the tap as come apart inside so when you think you turn the tap on you are only turning the head and not opening the tap
13th May 2017
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HJZ Plumbing
3 Reviews, 100% Positive
Check hot water tap site.probably is not open.
1st May 2017
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bh
5 Reviews, 100% Positive
Get professional to come and find out what is wrong it may be from installation.
20th Oct 2018
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