Wireless
Wireless Receiver
In short
Wireless Receiver: Single channel wireless heating receiver. It has 7 terminals: E (Earth), L (Live), N (Neutral), 1 (1), 2 (2), 3 (3), 4 (4).
If this is your home: this page is written for heating engineers. Mains wiring and gas appliances are not DIY jobs; call a Gas Safe registered engineer. If you smell gas, leave the building and call the National Gas Emergency Service on 0800 111 999.

Terminals
| Terminal | What it is |
|---|---|
| E | Earth |
| L | Live |
| N | Neutral |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
How it fails
- Wireless receiver relay failed
The receiver has power and shows a demand, but its relay never passes the live to the boiler.
- Open circuit between receiver and combi boiler
The receiver's output is live but the boiler's RT terminal is dead: the conductor between them is broken.
Where it connects
Lessons that use it
- Spot the Dangerous Wiring
Electrical Fundamentals
Systems it is part of
Also in wireless
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