💨 Derale 16778 Single Fan Controller with Enhanced Amperage - Push In Probe Review

The fan never turned on due to the temperature. The shot was rotated both ways with no change. The fan kicked on when the AC turned on, so the problem isn't with the wiring.

when I recently installed it, it turns on the fan, but it turns it on at the same time as the ignition is switched on, the so-called temperature setting does nothing, the screw continues to turn, but the temperature adjusts itself don't care. I'm not going to spend any more money, just buy a MUCH cheaper high amp relay and use that instead.

I was assured that when I bought a hot rod radiator and el. encased fan I needed the Derale controller #16778 to hold my new 350ci box. Runs cool as a cucumber! (NOT THE CASE) The fan came on once and never came on again almost melting the engine. I hope the fried water pump is the only thing I have to replace!. I tried adjusting the temperature screw but it made no difference. I agree, don't waste your money on this controller.

Fan never turned on due to temperature. The shot was rotated both ways with no change. The fan kicked on when the AC turned on, so the problem isn't with the wiring.

When I installed this the other day, it turns on the fan, but it turns on at the same time as turning on the ignition, the so-called temperature adjustment does nothing, the screw keeps turning, but the Temperature is not set with it. I'm not going to spend any more money, just buy a MUCH cheaper high amp relay and use that instead.