Repairs and problems
One tap has no hot water but others do
At a glance
- Mixer cartridges can fail internally and block one side, giving cold only from a tap that previously worked fine.
- A kinked or scaled flexible tail restricts flow on the hot side while the cold appears unaffected.
Questions we get asked
Could it be an airlock?
On a gravity hot supply, yes, the hot side is more prone to it than the mains-fed cold.
Is it worth replacing the tap?
On a cheap mixer often yes; on a good tap a new cartridge is the better route.
Likely causes
Point 1
Mixer cartridges can fail internally and block one side, giving cold only from a tap that previously worked fine.
Point 2
A kinked or scaled flexible tail restricts flow on the hot side while the cold appears unaffected.
Want this scoped properly before you commit?
We look at the room, check the services, and put the scope in writing so you can compare like with like.