Carrier Furnace Error Code 23
Pressure switch didn't open — the furnace can't light because the pressure switch is stuck closed or the inducer motor isn't running.
⚠️ Symptoms You'll Notice
- • No ignition attempt
- • Furnace doesn't start when called for heat
- • No sound of motor trying to spin up
- • LED flashing 2-3 pattern
What Causes Error Code 23?
🔧 DIY Troubleshooting Steps
- 1 Go outside and check the exhaust pipe for blockages (leaves, bird nests, ice, debris)
- 2 Listen for any humming sound from the inducer motor near the exhaust vent
- 3 Check if there's a clean-out on the exhaust pipe and look inside
- 4 Reset furnace and listen again for motor startup sound
📞 When to Call a Professional
If the vent is clear and inducer motor isn't running, you need professional service — this involves electrical diagnosis and motor replacement.
Estimated repair cost in Albuquerque: $200–$500
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Frequently Asked Questions
What does Carrier Furnace error code 23 mean? ▼
Pressure switch didn't open — the furnace can't light because the pressure switch is stuck closed or the inducer motor isn't running.
How much does it cost to fix error code 23 in Albuquerque? ▼
Typical repair costs in Albuquerque for Carrier Furnace error code 23 range from $200–$500. If the vent is clear and inducer motor isn't running, you need professional service — this involves electrical diagnosis and motor replacement.
Can I fix Carrier error code 23 myself? ▼
Some basic troubleshooting is safe to try: Go outside and check the exhaust pipe for blockages (leaves, bird nests, ice, debris). Listen for any humming sound from the inducer motor near the exhaust vent. If the vent is clear and inducer motor isn't running, you need professional service — this involves electrical diagnosis and motor replacement.
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