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York · YZF42B21S LX Series AC

York YZF42B21S LX Series AC E6 Error Fix: Indoor Fan Motor Locked Rotor

The indoor fan motor is experiencing a locked rotor condition, indicating mechanical blockage or motor failure. Air circulation inside the home is reduced or stopped.

High severity2 fixes available

Quick Answer

Error E6 on the York YZF42B21S LX Series AC means: Indoor Fan Motor Locked Rotor. The top-ranked community fix is “Replace Indoor Fan Motor” (hard difficulty, ~60 min, DIY cost: $80-$120). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · air conditioner

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

Root Cause Analysis

Motor FailurePrimary

Motor Failure → Bearings Worn

When to Call a Professional

While many air conditioner repairs can be done safely at home, consider hiring a qualified technician if:

This is a high severity error — continued use may cause damage or a safety hazard
The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $250-$350.

Other York Models with Error E6

DERA-F036N07 14 SEER

air_conditioner · 2 fixes

YHG42B21S 3.5 Ton 14 SEER 10 HSPF Affinity Series Heat Pump with Variable-Speed Compressor

heat_pump · 2 fixes

YZH36B21S 3 Ton 16 SEER 9.5 HSPF Heat Pump with Environmentally Friendly Refrigerant

heat_pump · 2 fixes

Other York YZF42B21S LX Series AC Error Codes

Indoor Temperature Sensor Failure

2 fixes

Outdoor Coil Temperature Sensor Fault

2 fixes

High Pressure Switch Trip

2 fixes

Low Pressure Switch Trip

2 fixes

Compressor Overcurrent Protection

2 fixes

Outdoor Fan Motor Locked Rotor

2 fixes

Indoor Coil Freeze Protection Activated

2 fixes

Drain Pump Failure

2 fixes

People Also Ask About York YZF42B21S LX Series AC Error E6

What does error code E6 mean on a York YZF42B21S LX Series AC?

Error code E6 on the York YZF42B21S LX Series AC means: Indoor Fan Motor Locked Rotor. The indoor fan motor is experiencing a locked rotor condition, indicating mechanical blockage or motor failure. Air circulation inside the home is reduced or stopped.

How do I fix error code E6 on my York YZF42B21S LX Series AC?

The most successful fix is "Replace Indoor Fan Motor" (hard difficulty, ~60 minutes). Estimated DIY cost: $80-$120. HomeMD has 2 community-ranked fixes for this error.

Is error code E6 on a York YZF42B21S LX Series AC serious?

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

Can I fix York YZF42B21S LX Series AC error E6 myself?

Yes — the top-ranked community fix ("Replace Indoor Fan Motor") is rated hard difficulty and takes about 60 minutes. Tools needed: Phillips screwdriver, Multimeter.

How much does it cost to repair York YZF42B21S LX Series AC error E6?

DIY cost: $80-$120. Professional repair typically costs $250-$350. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the York YZF42B21S LX Series AC have?

The York YZF42B21S LX Series AC has 8 other known error codes, including: E1 (Indoor Temperature Sensor Failure), E2 (Outdoor Coil Temperature Sensor Fault), E3 (High Pressure Switch Trip), E4 (Low Pressure Switch Trip), E5 (Compressor Overcurrent Protection), and 3 more.

Which other York models have the E6 error?

Error code E6 also appears on 3 other York models: DERA-F036N07 14 SEER, 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.

What other error codes does the York YZF42B21S LX Series AC have?

The York YZF42B21S LX Series AC has 8 other known error codes:

E1 — Indoor Temperature Sensor Failure (2 fixes)
E2 — Outdoor Coil Temperature Sensor Fault (2 fixes)
E3 — High Pressure Switch Trip (2 fixes)
E4 — Low Pressure Switch Trip (2 fixes)
E5 — Compressor Overcurrent Protection (2 fixes)
E7 — Outdoor Fan Motor Locked Rotor (2 fixes)
E8 — Indoor Coil Freeze Protection Activated (2 fixes)
E9 — Drain Pump Failure (2 fixes)

Which other York models have the E6 error?

Error code E6 also appears on 3 other York models:

DERA-F036N07 14 SEER (air conditioner) · 2 fixes
YHG42B21S 3.5 Ton 14 SEER 10 HSPF Affinity Series Heat Pump with Variable-Speed Compressor (heat pump) · 2 fixes
YZH36B21S 3 Ton 16 SEER 9.5 HSPF Heat Pump with Environmentally Friendly Refrigerant (heat pump) · 2 fixes

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