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Maria ClaytonAug 5, 2025
What to do if my York International Air Conditioner is steadily off?
- TToni GarnerAug 5, 2025
If your York International Air Conditioner is steadily off, it could be due to a lack of power to the control. Specifically, less than 18 VAC might be present at the ignition control's R (P2-2 pin) and C (P2-1 pin) connections. To resolve this, verify that line voltage is present at the primary and 24 VAC is present at the secondary of the 75VA transformer. Also, check for 24 VAC from the UCB's C to SD terminals, ensuring the 3.2A control circuit breaker and phase monitor contacts are closed. Finally, confirm that 24 VAC is present at the ignition control's R (P2-2 pin) and C (P2-1 pin) connections, indicating that the unit to ignition control wiring is intact.
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