12015 — Economizer pressure transducer fault, circuit C

What does 12015 mean?

The economizer pressure transducer on circuit C has a fault. Circuit C will shut down.

• Defective economizer pressure transducer
• Wiring errors on circuit C

Click steps to track your progress.

1. 1

   Check the wiring for the economizer pressure transducer on circuit C.

2. 2

   Inspect the transducer for any visible damage.

3. 3

   Contact Carrier Service if circuit C does not restart.