Carrier Furnace Error Code 12
Blower motor running after power interruption — the furnace detected the blower was spinning when power was restored, which shouldn't happen.
⚠️ Symptoms You'll Notice
- • Blower running continuously
- • Furnace not responding to thermostat
- • LED flashing 1-2 pattern
- • Humming sound from furnace
What Causes Error Code 12?
🔧 DIY Troubleshooting Steps
- 1 Turn off furnace at circuit breaker for 30 seconds, then turn back on
- 2 Check if blower is actually spinning — listen and feel for airflow
- 3 Make sure nothing is blocking the blower wheel
- 4 Reset thermostat to factory defaults if possible
📞 When to Call a Professional
If code 12 persists after a power reset, the blower motor or control board likely needs replacement.
Estimated repair cost in Albuquerque: $200–$600
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Frequently Asked Questions
What does Carrier Furnace error code 12 mean? ▼
Blower motor running after power interruption — the furnace detected the blower was spinning when power was restored, which shouldn't happen.
How much does it cost to fix error code 12 in Albuquerque? ▼
Typical repair costs in Albuquerque for Carrier Furnace error code 12 range from $200–$600. If code 12 persists after a power reset, the blower motor or control board likely needs replacement.
Can I fix Carrier error code 12 myself? ▼
Some basic troubleshooting is safe to try: Turn off furnace at circuit breaker for 30 seconds, then turn back on. Check if blower is actually spinning — listen and feel for airflow. If code 12 persists after a power reset, the blower motor or control board likely needs replacement.
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