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Troubleshooting Lid Lift Function on Fan-Tastic Vent FV803350

Question:

there is no power to the lid motor on my fantastic fan. i purchased a replacement thinking it was the motor. can you suggest what I check next thank you

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Expert Reply:

If your Fan-Tastic Vent # FV803350 is getting 12V power to the fan motor but not to the lid's lift motor you'll want to test the wiring within the fan to find the point where power is lost. This is most easily done with a simple probe type circuit tester like # PTW2992. The tester will allow you to probe the lid wiring both before and after the lid lift switches to see if it is the switches that are blocking power to the lid motor. The only other probable cause for this issue is a defective rain sensor that may "think" it is raining when it is not.

My contact at Fan-Tastic Vents confirmed that these two parts, the lid switches and the rain sensor, are not offered for user-service. If the issue is with either of these the whole vent unit will need to be replaced.

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