i just put in a new amp not rebuilt and rebuilt servo-got air flow with blower for about 5 seconds then nothing,now i get heat but very low flow and no cold air flow-any ideas as to how to evaluate if rebuilt servo is working.i know there is an inline fuse in fuse box as well.i aslo know about temp sensor at dash,but i dont know where to go from here.servo came from ebay-this guy dougstar-was recommended by another member .

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95 e320,87 sdl,79 300sd