Like any heating system, there may be times when the underfloor heating (UFH) doesn’t seem to be working as it should. Nu-Heat’s Technical Team helps you to find the root of the problem, whether electrical or down to a failed part, to get the system up and running again.
Let’s take a look at a few of the potential problems you may come across with UFH and how to go about solving them.
Underfloor heating single zone not heating up
If a single zone is not heating up as expected, it could be caused by a number of small problems that are all fairly simple to resolve:
- A sticky pin valve underneath an actuator
There is a small pin underneath each actuator. You need to remove the actuator from the affected zone to check that the pin valve is free. If it’s stuck down it can be freed using a silicone spray. You can also use a pair of long nose pliers to try and free the pin.
- Actuator failed
If an actuator has failed, this is most likely due to an electrical issue that could relate to a thermostat or wiring board. It’s best to consult a qualified electrician to check the circuits.
A faulty actuator can also cause the UFH to be permanently switched on.
- Faulty thermostat
You can easily reset a thermostat by following the user guide. If the system uses wireless, battery-powered thermostats then it’s also a good idea to check the batteries. If neither of these options works, it could potentially be an electrical fault so a qualified electrician should be called.
A faulty thermostat can also cause the UFH to be permanently switched on.