Jeep Wrangler Fan Switch Problems

Normal use of fan speed control switch of 1999 jeep wrangler.

Jeep wrangler fan switch problems.

2003 jeep wrangler sport. First is the design of the circuits involved. Second would be the blower motor. The infamous blower motor switch resistor problem.

If your jeep wrangler s heater has stopped working this process has failed. When your jeep reaches its optimal temperature its thermostat opens and allows that coolant from the cooling system to flow through the engine removing heat and sending it into the radiator then into the heater core which ultimately distributes it into the jeep. Luckily nobody was hurt due to close proximaty of dealership. The male tabs on back of switch break causing shorts and failure.

The cooling fan in a jeep grand cherokee keeps engine temperatures at the correct level by kicking on during times when the engine reaches higher than average temperatures. There are a couple of factors that lead up to the failure of the melting fan switch. In this video i am showing how to troubleshoot and pinpoint a problem on a not working air cond blower the motor with a simple tool like the test light. Sold and missed.

Current jeep 2006 jeep wrangler unlimited. Replaced under warranty twice. The second time was in new york on vacation and the short caused a dash fire in which the wiring harness had to be replaced. There is a serious product defect in the fan motor switch resister assembly in my 2001 jeep wrangler.

If the cooling fan stops working most do it yourself.