My fan speed regulator went out months ago and I had it replaced. Everthing works OK now except the fan doesn't seem to blow hard enough. When I check the voltage through the front panel it won't go higher than 4.8. This is on my 96 S-500. On my 98 430E it goes to 6.0. Looks to me to be the same units. What should the s-500 go to? IF I'm not there is there anything to do? I've manually put the AC to "LOW" and maxed out the fan speed. 4.8 is it.

KG

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Ken G
96 S500 79K (great white whale)
98 E430 80K Sports Package (gray ghost)