Now it just runs and runs. You have a 2 way switch being used as a 1 way switch and youve connected the fan to the unused terminal thats why the fan runs when you switch off.
Light Switches Amp Dimmers
Bathroom fan stays on when switch is off. Fan is a manrose 100mm mixed flow fan. Power looks for a ground normally the switch turning on gives it a ground and turns on the fan. Just stays on all the time. Chances are if your bathroom fan is on all the time that switch might be on. Bathroom exhaust fan not turning off duration. The only difference is that a timed extractor needs a permanent live so it can run on when the light is switched off.
Just use the switched live and neutral. Does this mean i need to change the switch on the wall. In the loft space two white wires come off of the unit and enter a small white box. The switching and supply to the fan comes from your lighting circuit and through this. So doing some online research i appear not to have completely bypassed the switch as it still turns off the fan. Two wires red and brown i think exit the box unit.
If the fan cannot be switched off move to the other terminal. It worked fine a week or so ago. Cobblers does the same thing if its a one way switch too. Tried the pull cord in the bathroom and it makes no difference. Also the fan switch is an isolator. Connect the fan to one of the other switch terminals.
Power sits waiting for the ground but if the onoff switch melts due to a surge it may act as if its always on. In the ceiling is a small extractor fan with a halogen light in the centre. Connected it all up and as soon as i turned the isolator switch on in the attic the fan comes on. At the switch side the light and fan have separate switches on the wall. It will shut off with i flip the circuit breaker. The switch operates both the lights and the extractor fan and the fan correctly turns on and off however the bathroom lights stay on permanently.
Its usually found near the thermostat. Epic alternatives 2236 views. My bathroom fan will not shut off when i flip the switch. This fan is designed to run constantly 247 in order to maintain the air quality in your. Just fitted a replacement extractor fan in the bathroom ceiling to the existing wiring. Usually located in your bathroom or laundry room higher up on the wall than a normal light switch.
I tried disconnecting the switch all together but it still came on when the circuit breaker was flipped on. The easiest system to install and maintain is a continuous running bath fan.