How to Fit an Extractor Fan Switch
Quick Answer
Mount the switch, connect the live, neutral, and switched live wires, and test.
How to troubleshoot How to Fit an Extractor Fan Switch
Extractor fan switches control bathroom ventilation. This guide covers fitting an isolator switch for a fan.
Step-by-Step Fix
- Turn off power at the consumer unit and verify dead.
- Mount the fan isolator switch in the desired location.
- Connect the supply wires to the IN terminals.
- Connect the fan wires to the OUT terminals.
- Ensure the earth wires are connected to the earth terminal.
- Restore power and test the fan operation.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Fan does not work | Incorrect wiring | Check connections against the wiring diagram. |
| Fan runs constantly | Switched live incorrectly wired | Check the switched live connection. |
Frequently Asked Questions
Do I need an isolator switch for a bathroom fan?
Yes, it is required for maintenance and safety.
What is the difference between a timer and a non-timer fan?
Timer fans continue running after the light is turned off.