Hot water supply to shower and kitchen luke warm. Temporarily no cold supply.

[Danielalford22]

We recently had a new comni boiler fitted.
During the install we realised we had an extra pipe heading to the loft we assumed was related to the old tank

We had it cut off.

It seems this was the cold water feed to our shower.

As a temporary solution we have adjusted the hot water temperature on the boiler to just use the hot tap on the shower.

However even increasing as high as 60 degrees its only luke warm with the tap set fully to hot. Same story in the kitchen.

The tap in the bathroom sink however is piping hot.

Will running a new cold water feed to shower fix this or do I have a bigger problem?

Thanks all

 

[CountryFan]

What has your installer said? Sounds like possibly crossed pipes or you need this cold feed. Was the cylinder removed? Which make/model of combi?

 

[Madrab]

Is the kitchen sink a mixer? Basin separate taps?

It's possible there is cold water crossflow happening as the shower hot feed is no longer balanced. I would suspect that re-instating the cold feed to the shower may sort it out.

 

[denso13]

Will running a new cold water feed to shower fix this

Probably, some just won't work with only one pipe connected, hot or cold.