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Central Heating

Underfloor heating

I have recently moved into a property with a wet system underfloor heating. One room is very cold. The actuator has been checked and is OK. What are the other possible causes? If it's an airlock, how can this be resolved?
Many thanks

2 Answers from MyBuilder Heating Engineers

Air lock, you can move it via the manifold valve, failing that call in the experts ie a plumbing and heating engineer :)


Answered 6th Feb 2015

U need to check your flow sensor with spring,its my stuck,and take off the actuator and then press with finger the nipple and see if the flow sensor spring are moving,its really hard to get air lock if its been done properly.


Answered 8th Feb 2015

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