Gas Heat Supply Airflow Low Limit
- The unit will error out if the Supply Airflow is<175CFM/Ton for more than 5 minutes
- A 5-minute timer will only reset for loss of active heating call or airflow increases ≥ 175CFM/Ton
- Heat will be discontinued and Manual Lockout Diagnostic will be set
Check the transducer tubing
Text in the image above:
- Green Tube High
- Clear Tube Low
- Low Port Clear Tube
- Hi Port Green Tube
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.