Carrier Furnace Error Code 13
Limit circuit lockout — the furnace got too hot and the high-temperature safety switch shut it down to prevent damage.
⚠️ Symptoms You'll Notice
- • Furnace shuts off after running briefly
- • Loud banging or popping from ductwork
- • Not enough heat reaching rooms
- • LED flashing 1-3 pattern
What Causes Error Code 13?
🔧 DIY Troubleshooting Steps
- 1 Check the furnace air filter — if it's gray or brown, replace it immediately
- 2 Look at all return air grilles — make sure nothing is blocking them
- 3 Vacuum around the furnace intake to remove dust and debris
- 4 Wait 30 minutes and see if furnace resets
📞 When to Call a Professional
If limit keeps tripping after filter change and vents are clear, you need a tech to check blower speed and heat exchanger condition.
Estimated repair cost in Albuquerque: $25–$400
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Frequently Asked Questions
What does Carrier Furnace error code 13 mean? ▼
Limit circuit lockout — the furnace got too hot and the high-temperature safety switch shut it down to prevent damage.
How much does it cost to fix error code 13 in Albuquerque? ▼
Typical repair costs in Albuquerque for Carrier Furnace error code 13 range from $25–$400. If limit keeps tripping after filter change and vents are clear, you need a tech to check blower speed and heat exchanger condition.
Can I fix Carrier error code 13 myself? ▼
Some basic troubleshooting is safe to try: Check the furnace air filter — if it's gray or brown, replace it immediately. Look at all return air grilles — make sure nothing is blocking them. If limit keeps tripping after filter change and vents are clear, you need a tech to check blower speed and heat exchanger condition.
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