Carrier HVAC Error Code 15: How to Fix It

Error Code

15

Brand

Carrier

Product Type

hvac

Severity

Medium

DIY Difficulty

Medium

Estimated Fix Time

1-2 hours

Tools You'll Need

• Multimeter
• Screwdriver set
• Safety gloves
• Capacitor discharge tool

How to Fix Error Code 15

1. Power Down the System

   Always turn off power to the unit before servicing to avoid electrical shock.

2. Check Circuit Breaker and Disconnect Switch

3. Inspect Blower Motor Connections

   Disconnect power before removing panels.

4. Test the Blower Motor Capacitor

   Capacitors can store a charge. Discharge the capacitor safely before testing.

5. Measure Voltage at Blower Motor

   Work carefully with live voltage. Re-energize only for testing and then power down again.

6. Check Control Board for Error Codes

Parts You May Need