Increasing current on fan controller

Tonyr1084

Joined Sep 24, 2015
4,521
Reason why fuse probably blew was the start-up current of the fan exceeded the 8 amp fuse. NEVER SWAP A HIGHER RATED FUSE IN WHEN A LOWER RATING IS REQUIRED. Failure to follow that advice may result in damage to your circuit.
 

Thread Starter

danthevet

Joined May 12, 2020
2
Reason why fuse probably blew was the start-up current of the fan exceeded the 8 amp fuse. NEVER SWAP A HIGHER RATED FUSE IN WHEN A LOWER RATING IS REQUIRED. Failure to follow that advice may result in damage to your circuit.
Ok the current on motor is quoted as 7.49 is this just too close to the rating on the controller (8amp), could it be as it starts up the fan exceeds 8amp?
 

Tonyr1084

Joined Sep 24, 2015
4,521
I have a fan that draws 19 amps in normal operation. Measurements showed it drew as much as 39 amps at start-up. That's why I said your fuse probably blew because of the start-up current.

I also said not to replace the fuse with anything higher than the original fuse. In your case, 8 amps.
 
Top