For some reason my 1993 Jeep Wrangler 4.0 6cyl's heater will only blow when I set the fan to high. The fan does not kick on in the low or medium setting. I have tried to search for a solution, but I only find this issue with the TJ model and I dont know if it is the same. If someone could help me in the right direction it would be greatly appreciated. I live in NY and these winters are cold, but keeping the heat blowing on HIGH is a little much at times.