LED Blink Codes
- 2-flash - 1 Hour Lockout
- 3-flash - Pressure Switch
- 4-flash - TCO Open
- 5-flash - Flame W/O Gas
- 6-flash - Rollout Switch Open
- 7-flash - W1 / W2 Swapped
9 Pin Plug Inputs / Outputs
- 1 - Gas Valve HI (Out)
- 2 - Gas Valve LOW (Out)
- 3 - 24 VAC Input from Pressure Switch
- 4 - Flame Sense
- 5 - Configuration (GND for 2-stage operation, Open for Single-stage operation)
- 6 - 24 VAC Input from Rollout Switch
- 7 - 24 Common
- 8 - 24 VAC Input from Limit Switch
- 9 - 24 VAC Out (when there is a W1 (Heat Call)
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.