Checking that the boiler controller is working

Open the door on the Dual Channel Receiver and read from the labels on the inside of the door, which white button control the heating (it is normally the upper button).

Press and hold the relevant white button. The light should turn green for a few seconds to confirm that the Dual Channel Receiver is calling for heat.

• The fact that the boiler controller shows a green light, shows that it is communicating and responding correctly.

  

• If the light turns red and you have not configured the Dual Channel Receiver during this testing:

  • To fix this, click on the device submenu (•••) and choose 'Configure'.

    

  • Confirm that you want to proceed by pressing 'Configure'.

  • Now click on the device submenu (•••) and choose 'Ping' and confirm this.

  • The time since last communication should return to near 00:00.

  • Press the same white button as before and the light should now turn green for a few seconds.

• If the light turns red and you have configured the Dual Channel Receiver during this testing:

  • See this article for re-adding the Dual Channel Receiver to your system.

• If no light is shown on the Dual Channel Receiver at all, there is a power issue with the device. You should get a qualified plumber to look at and fix this.

If the light on the Dual Channel Receiver turns green once the zone is calling for heat, the zone valve should open and the boiler fire. The light will change back after a few seconds, but the boiler will continue to run. This means the Dual Channel Receiver is now working correctly.

1. If the boiler is not running, carry on with the steps below.

To check the zone valve is working, go to where the zone valves are located, this is normally next to the boiler. A zone valve is a silver metal box attached to a large brass valve in the pipework from the boiler, which has wires going to it. This opens and closes the flow of water around your system based on when there is a call for heat.

• On the side of the zone valve should be a lever.

• When you try to move the lever, if it is:

  • Difficult to move, then there is a problem with the zone valve or the wiring between the Dual Channel Receiver and zone valve. You should get a qualified plumber to look at and fix this.

  • Easy to move, then there is not a problem with the motor on the zone valve, but there is a problem wiring between zone valve and boiler, or a problem with the boiler. You should get a qualified plumber to look at and fix this.

The Single Channel Receiver displays a green light when it is calling for heat, and a single red light when it is not. As the zone is calling for heat, the light should be green.

• If the boiler controller shows a green light, it shows that it is communicating and responding correctly.

  

• If the light is red and you have not configured the Single Channel Receiver during this testing:

  • To fix this, click on the device submenu (•••) and choose 'Configure'.

    

  • Confirm that you want to proceed by pressing 'Configure'.

  • Now click on the device submenu (•••) and choose 'Ping' and confirm this.

  • The time since last communication should return to near 00:00.

  • The light should now turn green.

• If the light remains red and you have configured the Single Channel Receiver during this testing:

  • See this article for re-adding the Single Channel Receiver to your system.

• If no light is shown on the Single Channel Receiver at all, there is a power issue with the device. You should get a qualified plumber to look at and fix this.

If the light on the Single Channel Receiver is green once the zone is calling for heat, the boiler should fire. This means the Single Channel Receiver is now working correctly.

1. If the boiler is not running, carry on with the step below.

A Single Channel Receiver is always used with a combination boiler. If the boiler does not fire, the boiler may need to be checked that it has power, suitable water pressure and no error codes on the front of the boiler. You should get a qualified plumber to look at and fix this.