Carrier Furnace Error Code 24
Secondary voltage fuse blown — the control board has a blown fuse in its secondary voltage circuit, shutting down the ignition system.
⚠️ Symptoms You'll Notice
- • Furnace won't ignite
- • No spark at igniter
- • Furnace won't respond at all
- • LED flashing 2-4 pattern
What Causes Error Code 24?
🔧 DIY Troubleshooting Steps
- 1 Look at the control board for a visible blown fuse (will look burned or discolored)
- 2 Check all wiring connections for damage, corrosion, or shorts
- 3 Don't attempt to replace the fuse yourself unless you're comfortable with electronics
- 4 Note the fuse size and type if visible
📞 When to Call a Professional
This definitely needs professional service — a tech will identify why the fuse blew (short circuit or board failure) and replace both the fuse and any damaged components.
Estimated repair cost in Albuquerque: $150–$400
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Frequently Asked Questions
What does Carrier Furnace error code 24 mean? ▼
Secondary voltage fuse blown — the control board has a blown fuse in its secondary voltage circuit, shutting down the ignition system.
How much does it cost to fix error code 24 in Albuquerque? ▼
Typical repair costs in Albuquerque for Carrier Furnace error code 24 range from $150–$400. This definitely needs professional service — a tech will identify why the fuse blew (short circuit or board failure) and replace both the fuse and any damaged components.
Can I fix Carrier error code 24 myself? ▼
Some basic troubleshooting is safe to try: Look at the control board for a visible blown fuse (will look burned or discolored). Check all wiring connections for damage, corrosion, or shorts. This definitely needs professional service — a tech will identify why the fuse blew (short circuit or board failure) and replace both the fuse and any damaged components.
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