Lennox Furnace Error Code 10 Flashes
Line voltage polarity reversed — the AC power supply has been wired backwards.
⚠️ Symptoms You'll Notice
- • Furnace won't operate
- • Intermittent failures
- • Unusual behavior
- • Safety lockout
What Causes Error Code 10?
🔧 DIY Troubleshooting Steps
- 1 Check the disconnect switch for correct power connections
- 2 Do NOT operate with reversed polarity
- 3 Note the condition for the technician
- 4 Call professional immediately
📞 When to Call a Professional
Power polarity must be corrected by a licensed electrician.
Estimated repair cost in Albuquerque: $100–$300
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Frequently Asked Questions
What does Lennox Furnace error code 10 mean? ▼
Line voltage polarity reversed — the AC power supply has been wired backwards.
How much does it cost to fix error code 10 in Albuquerque? ▼
Typical repair costs in Albuquerque for Lennox Furnace error code 10 range from $100–$300. Power polarity must be corrected by a licensed electrician.
Can I fix Lennox error code 10 myself? ▼
Some basic troubleshooting is safe to try: Check the disconnect switch for correct power connections. Do NOT operate with reversed polarity. Power polarity must be corrected by a licensed electrician.
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