❄️Air Conditioner

York · DERA-F036N07 14 SEER

York DERA-F036N07 14 SEER E4 Error Fix: Indoor Fan Motor Locked

This error is triggered when the indoor fan motor is unable to rotate due to mechanical blockage or motor failure. It results in poor airflow and reduced cooling performance.

High severity2 fixes available

Quick Answer

Error E4 on the York DERA-F036N07 14 SEER means: Indoor Fan Motor Locked. The top-ranked community fix is “Replace indoor fan motor” (medium difficulty, ~90 min, DIY cost: $80-$100). 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

Mechanical Wear

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: $180-$250.

Other York Models with Error E4

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

heat_pump · 2 fixes

YZF42B21S LX Series AC

air_conditioner · 2 fixes

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

heat_pump · 2 fixes

Other York DERA-F036N07 14 SEER Error Codes

High Pressure Switch Trip

2 fixes

Low Pressure Switch Trip

2 fixes

Compressor Overload

2 fixes

Outdoor Fan Motor Failure

2 fixes

Evaporator Coil Freeze

2 fixes

Thermistor Open Circuit

2 fixes

Communication Error Between Indoor and Outdoor Units

2 fixes

Indoor Unit Coil Temperature Sensor Error

2 fixes

People Also Ask About York DERA-F036N07 14 SEER Error E4

What does error code E4 mean on a York DERA-F036N07 14 SEER?

Error code E4 on the York DERA-F036N07 14 SEER means: Indoor Fan Motor Locked. This error is triggered when the indoor fan motor is unable to rotate due to mechanical blockage or motor failure. It results in poor airflow and reduced cooling performance.

How do I fix error code E4 on my York DERA-F036N07 14 SEER?

The most successful fix is "Replace indoor fan motor" (medium difficulty, ~90 minutes). Estimated DIY cost: $80-$100. HomeMD has 2 community-ranked fixes for this error.

Is error code E4 on a York DERA-F036N07 14 SEER serious?

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

Can I fix York DERA-F036N07 14 SEER error E4 myself?

Yes — the top-ranked community fix ("Replace indoor fan motor") is rated medium difficulty and takes about 90 minutes. Tools needed: Phillips screwdriver, Multimeter.

How much does it cost to repair York DERA-F036N07 14 SEER error E4?

DIY cost: $80-$100. Professional repair typically costs $180-$250. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the York DERA-F036N07 14 SEER have?

The York DERA-F036N07 14 SEER has 8 other known error codes, including: E1 (High Pressure Switch Trip), E2 (Low Pressure Switch Trip), E3 (Compressor Overload), E5 (Outdoor Fan Motor Failure), E6 (Evaporator Coil Freeze), and 3 more.

Which other York models have the E4 error?

Error code E4 also appears on 3 other York models: YHG42B21S 3.5 Ton 14 SEER 10 HSPF Affinity Series Heat Pump with Variable-Speed Compressor, YZF42B21S LX Series AC, 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 DERA-F036N07 14 SEER have?

The York DERA-F036N07 14 SEER has 8 other known error codes:

E1 — High Pressure Switch Trip (2 fixes)
E2 — Low Pressure Switch Trip (2 fixes)
E3 — Compressor Overload (2 fixes)
E5 — Outdoor Fan Motor Failure (2 fixes)
E6 — Evaporator Coil Freeze (2 fixes)
E7 — Thermistor Open Circuit (2 fixes)
E8 — Communication Error Between Indoor and Outdoor Units (2 fixes)
E9 — Indoor Unit Coil Temperature Sensor Error (2 fixes)

Which other York models have the E4 error?

Error code E4 also appears on 3 other York models:

YHG42B21S 3.5 Ton 14 SEER 10 HSPF Affinity Series Heat Pump with Variable-Speed Compressor (heat pump) · 2 fixes
YZF42B21S LX Series AC (air conditioner) · 2 fixes
YZH36B21S 3 Ton 16 SEER 9.5 HSPF Heat Pump with Environmentally Friendly Refrigerant (heat pump) · 2 fixes

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