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Hi Ed, welcome to justanswer.com
Can the remote from the working fan be configured to try to operate the non-working fan. If so and you try this without success, the non-working fan has a defective receiver. It sounds like other issues as well since the fan will not change direction with the manual switch. Realistically, I believe your best option is to replace the defective fan with a new one. You do not mention if these are in the same room, if so, hopefully the manufacturer has not changed the model and you can find an identical replacement.