As a corollary to what I said earlier, the control circuit uses 1 to 8v. The blower uses between 20 and 25 amps. The blower comes with a new regulator. A blower using too much current will give a short life to the regulator.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician