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Your underfloor heating mains is within the consumer unit (fuse box); check this first to ensure the isolation switch is turned to the 'on' position.

Next check that the thermostat controls for the underfloor heating are set; the temperature you choose will need to exceed the current room temperature in order for the underfloor heating to activate. You also need to ensure that you are using the correct thermostat to set that zone.

It is common for underfloor heating to take longer to warm up (compared to conventional central heating systems), as it has to heat the entire floor area at the same time rather than an individual radiator. That is why we advise for the system to continuously run.

It is important to remember that the underfloor heating is there to warm the air and not your feet, some variation in temperature can be felt on the floor.