Farm Bus
New member
Position 4 (fastest) quit working on the heater blower. I have located the resistor block, and have read that position 4 is "no resistance". I can check other positions by checking resistance across the different positions on the block. But if 4 is "open" with no resistance, how do I test what's bad?
What would cause the fastest speed to cut out? By the way, when the fan is in position 4, it is running at speed 3. I can click between 3 and 4 with no change in speed. I know it's not 4 because 4 is really LOUD.
Really what I'm asking is how to I keep from being sold a repair that I don't need? "Oh ya, you need a new blower and resistor block and tranny"
Brian
What would cause the fastest speed to cut out? By the way, when the fan is in position 4, it is running at speed 3. I can click between 3 and 4 with no change in speed. I know it's not 4 because 4 is really LOUD.
Really what I'm asking is how to I keep from being sold a repair that I don't need? "Oh ya, you need a new blower and resistor block and tranny"
Brian