Defogger Controls problems of the 2004 Mazda RX8

The heater control units are failing on Mazda Rx8. When driving the air goes hot to cold back and forth. If you move the knob back and forth you can get your heat back. I have had windows fog up because the heat has gone out. I have contacted Mazda and they will not address it. I am not the only person this affects. If you do a search on Rx8club. Com you will see all the failures.

2004 Mazda RX 8 has many design defects, battery was replaced, spark plugs and oil filter was replaced 3 months after purchase. The started was replaced. The vehicle was stalling in traffic and was taking multiple times to try to restart the vehicle. After numerous times of the vehicle being towed, the dealership decided to replace the entire engine. After the replacement of the engine, the engine light illuminated and the vehicle was still not starting smoothly. The dash lights were blinking on and off and the heat was not working. The catalytic converter, 02 sensor, and a/c amplifier. The heater control switch was replaced. The sun visor was replaced.