Dispatched for thermostat not receiving power. At arrive the nest thermostat was not getting power from the furnace. After a thorough inspection of the system and checking the drain pan for a safety switch. The safety switch was not activated. Then recheck the nest stat and it would not attach securely. Loosened the bottom screw and the nest stat attached securely and detected power from the furnace. System is operating. Thank you for allowing us in your house to provide the perfect home service and I look forward to you becoming a member of the Perfect Family Service Club from your LBA Service tech Calvin. If I provided a positive or five star experience. I’d appreciate you sharing your thoughts in a review.