Boiler not heating - Room thermostat set too low

What does Room Thermostat Too Low mean?

The boiler is not producing heat because the room thermostat (if fitted) is set to a temperature lower than the current room temperature, so it is not calling for heat. The boiler is correctly waiting for a heat demand.

• Room thermostat intentionally or accidentally set too low.
• Thermostat batteries are low or need replacing (for wireless models).
• Thermostat faulty or improperly calibrated.

Click steps to track your progress.

1. 1

   Turn the room thermostat to its maximum setting to ensure it calls for heat.

2. 2

   If the boiler starts to operate, gradually reduce the thermostat setting to your desired room temperature.

3. 3

   Check the batteries in your wireless room thermostat, if applicable, and replace them if necessary.