IMHO,if the relay works in one direction, the problem is more likely to be one of the limit-switches. These can both be taken apart, the contacts wire-brushed & sprayed with TV contact-cleaner (from Radio Shack), then reassembled. Do the external spade-lug connectors, too. Be careful- these microswitches are expensive to replace if you lose an inside part! If this works, be sure to remember Joe Lucas and his always-unplated electrical parts in your evening prayers....
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