Thursday, September 19, 2019

blower issues & solution

Had an issue with blower motor since last winter. 25A fuse, thermal fuse and longest resistor of blower resistor frequently blown. After that I rewired relay and switch directly to blower motor, blowing high speed only.

Rreplaced everything related to blower, blower motor, blower resistor, blower speed switch and mode selector etc, still got fuse blown. in weekend, checked all components by replacing them one by one and later wiggling wires, found that, a green wire at blower resistor short somewhere behind dash panel/glove box. Have to remove dash and check all wires, but it will took whole day, based on youtube videos.

Partially dismantled dash panel and revealed those wires from blower motor resistor to climate control. Both green wire insulation damaged and one was definitely shorted in place of insulation damage. Used a shrink tube and insulation tape, problem solved. No more blown fuse, now we have a 4 speed blower :D




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