HVAC IQ Pro

HVAC LED Blink Codes

Diagnose furnace and heat pump faults using LED flash patterns. Select a manufacturer to view all their diagnostic blink codes.

🏠 Home ⚠️ Error Codes 💡 Blink Codes 🔍 Age Decoder 🩺 Free Diagnostics

Carrier

15 blink codes documented

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Goodman

9 blink codes documented

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Heil

4 blink codes documented

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Lennox

8 blink codes documented

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Rheem

7 blink codes documented

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Trane

8 blink codes documented

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York

10 blink codes documented

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