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Susan HudsonJul 26, 2025
What to do if my Aprilaire 8476 Thermostat display is blank?
- JJessica RobertsJul 27, 2025
If the display on your Aprilaire Thermostat is blank, try the following: * Check the circuit breaker and reset it if necessary. * Ensure the power switch at the heating & cooling system is turned on. * Confirm that the furnace door is securely closed. * If your thermostat is battery powered, make sure that fresh AA alkaline batteries are correctly installed.