Imperial Thermostatic Fan Control - Preset

great value. easy to use

This unit is easy to install. However, the most important piece is the most unreliable of the contents in the package: The thermostatic switch. It is supposed to "close the circuit" at ~185*F. This does not happen. I tried two separate new ones and neither are accurate, or close, for that matter. In a pan of hot water, the 2 switches I got from Advance Auto Parts were nowhere close to this temp setting. One switch closed at 224*F, and the other closed at 240*F (water was boiling for a few minutes before the switch closed.) Being that I am using the Imperial fan (226110) on the Imperial Maxi-Cool Transmission cooler (243012), these temperatures would have already caused transmission damage, let alone the fact that they're supposed to operate in the 185*F range. 40-60*F variance is totally unacceptable.

This relay made my electric fan install easy. Instructions were straight forward, and installation was a snap. Came with preset probe which didn't need any tuning. The only problem I had was finding a constant 12volt ignition activated power source to plug the probe into in my classic Camaro. Relay runs the fan great and hides easily out of sight.

I've been using this kit for several years on my off road truck. It's hooked up to a powerful flex-a-lite fan and handles the load with ease. I have blown a couple fuses, but that only happens when crossing deep water. The install was very easy, and since there's only a couple parts it is very reliable. I've had the adjustable units fail once a little water or mud gets on them. This one can be mounted up and out of harms way. I will be getting a second unit for my daily driver pickup, so I'm happy to see they're still available.

Installed the Fan control and it didn't work. Couldn't return it because I had already cut the wires to fit. Paid up for a better one and wasted my money.