❄️Air Conditioner

York · DERA-F036N07 14 SEER

York DERA-F036N07 14 SEER E1 Error Fix: High Pressure Switch Trip

This error indicates the high pressure switch has been triggered due to excessive refrigerant pressure in the system. It is usually caused by blocked airflow or dirty condenser coils. The unit will shut down to protect the compressor from damage.

High severity2 fixes available

Quick Answer

Error E1 on the York DERA-F036N07 14 SEER means: High Pressure Switch Trip. The top-ranked community fix is “Clean condenser coils and check airflow” (easy difficulty, ~30 min, DIY cost: $0-$10). 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

Sensor MalfunctionPrimary

Refrigerant Issue

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: $100-$150.

Other York Models with Error E1

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

Low Pressure Switch Trip

2 fixes

Compressor Overload

2 fixes

Indoor Fan Motor Locked

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 E1

What does error code E1 mean on a York DERA-F036N07 14 SEER?

Error code E1 on the York DERA-F036N07 14 SEER means: High Pressure Switch Trip. This error indicates the high pressure switch has been triggered due to excessive refrigerant pressure in the system. It is usually caused by blocked airflow or dirty condenser coils. The unit will shut down to protect the compressor from damage.

How do I fix error code E1 on my York DERA-F036N07 14 SEER?

The most successful fix is "Clean condenser coils and check airflow" (easy difficulty, ~30 minutes). Estimated DIY cost: $0-$10. HomeMD has 2 community-ranked fixes for this error.

Is error code E1 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 E1 myself?

Yes — the top-ranked community fix ("Clean condenser coils and check airflow") is rated easy difficulty and takes about 30 minutes. Tools needed: Phillips screwdriver, Soft brush, Coil cleaner.

How much does it cost to repair York DERA-F036N07 14 SEER error E1?

DIY cost: $0-$10. Professional repair typically costs $100-$150. 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: E2 (Low Pressure Switch Trip), E3 (Compressor Overload), E4 (Indoor Fan Motor Locked), E5 (Outdoor Fan Motor Failure), E6 (Evaporator Coil Freeze), and 3 more.

Which other York models have the E1 error?

Error code E1 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:

E2 — Low Pressure Switch Trip (2 fixes)
E3 — Compressor Overload (2 fixes)
E4 — Indoor Fan Motor Locked (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 E1 error?

Error code E1 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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