Red LED flashes nine times — Module low voltage

What does Red LED 9 flashes mean?

The voltage supplied to the control module (on T2-T1 terminals) is below 18 VAC for more than 5 seconds. This will stop the compressor. The system will attempt to reset after 5 minutes if the voltage is between 18 and 30 VAC. This alert does not cause a lockout.

• Low voltage supplied to the control module
• Incorrect module voltage rating
• Wiring error in the control circuit

Click steps to track your progress.

1. 1

   Verify that the correct 24 VAC module is installed.

2. 2

   Check the control circuit wiring for errors.

3. 3

   Ensure the T2-T1 voltage is within the acceptable range (18-30 VAC).

4. 4

   Allow 5 minutes for automatic reset if voltage is corrected.