York YCG42B21S 3.5 Ton 14 SEER Affinity Series Air Conditioner with Scroll Compressor E10 Error Fix: Indoor Coil Freeze Detected

Error code E10 on the York YCG42B21S 3.5 Ton 14 SEER Affinity Series Air Conditioner with Scroll Compressor means: Indoor Coil Freeze Detected. The indoor evaporator coil is freezing due to low airflow or refrigerant issues. This reduces cooling performance and risks damage if not corrected.

The most successful fix is "Professional Refrigerant and Airflow Diagnosis" (hard difficulty, ~90 minutes). This fix costs nothing. HomeMD has 2 community-ranked fixes for this error.

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Yes — the top-ranked community fix ("Professional Refrigerant and Airflow Diagnosis") is rated hard difficulty and takes about 90 minutes. Tools needed: Manifold gauge set, Airflow meter.

DIY cost: $0. Professional repair typically costs $250-$350. Many homeowners save money by trying the top-ranked community fix first.

The York YCG42B21S 3.5 Ton 14 SEER Affinity Series Air Conditioner with Scroll Compressor has 8 other known error codes, including: E01 (Indoor Temperature Sensor Fault), E02 (Outdoor Unit Fan Motor Failure), E03 (Refrigerant Leak Detected), E04 (Compressor Overcurrent Protection Triggered), E05 (Indoor Fan Motor Stall Detected), and 3 more.

Error code E10 also appears on 6 other York models: DERA-P036N07 HP 16 SEER, GM9S080B12MP11 80,000 BTU 96% AFUE Single-Stage Upflow Gas Furnace, TM8E100C20MP11 100,000 BTU 80% AFUE Single-Stage Upflow Gas Furnace, TM9V080B12MP11 80,000 BTU 96% AFUE 2-Stage Variable-Speed Gas Furnace, YHG42B21S 3.5 Ton 14 SEER 10 HSPF Affinity Series Heat Pump with Variable-Speed Compressor, YZH36B21S 3 Ton 16 SEER 9.5 HSPF Heat Pump with Environmentally Friendly Refrigerant. The fix may vary by model, so check each model's specific page for tailored repair steps.