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Fix SoonPeak season: Jan, Sep, OctRecommended trade: Heating Engineer

Thermostat Not Working

The room thermostat does not respond, displays incorrectly, or the heating does not follow the set temperature.

What Is Causing This?

  • 1Dead batteries in a wireless thermostat
  • 2Thermostat placed near a heat source giving false readings
  • 3Wiring fault between thermostat and boiler

How Urgent Is This?

Fix Soon

This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.

What Needs to Be Done

A heating engineer will check batteries, wiring, and placement. They may recalibrate, relocate, or replace the thermostat with a modern programmable or smart model.

How Much Will It Cost?

£928 – £2,726

National average estimate

Labour: £565 – £1,488 | Materials: £363 – £1,238

Enter your postcode for a local price estimate

Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.

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How to Prevent This

Replace batteries in wireless thermostats annually. Position the thermostat away from radiators, direct sunlight, and draughts.

Related Problems

Other Heating Engineer Problems

Frequently Asked Questions

What causes thermostat not working?
Dead batteries in a wireless thermostat. Thermostat placed near a heat source giving false readings. Wiring fault between thermostat and boiler.
Is thermostat not working serious?
This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.
How much does it cost to fix thermostat not working?
Our illustrative trade-wide planning range is £928 to £2,726 and is not a diagnosis-specific quote. The actual repair may fall outside this range. Get a free quote from a local heating engineer on Tradesfolk.

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