❄️Air Conditioner

E01

Trane · XR13 13 SEER Central Air Conditioner

Trane XR13 13 SEER Central Air Conditioner E01 Error Fix: Low Refrigerant Pressure

The unit detected refrigerant pressure below the normal threshold, indicating a possible leak or undercharge. This can cause the AC to fail to cool properly and may damage the compressor if not addressed.

High severity2 fixes available✨ Free fix available

Quick Answer

Error E01 on the Trane XR13 13 SEER Central Air Conditioner means: Low Refrigerant Pressure. The top-ranked community fix is “Replace Refrigerant Lines and Recharge” (hard difficulty, ~120 min, DIY cost: $0). 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

Refrigerant IssuePrimary

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: $500-$700.

Other Trane Models with Error E01

S9V2B080U4 80,000 BTU 96% AFUE Two-Stage Variable Speed Gas Furnace

furnace · 2 fixes

Other Trane XR13 13 SEER Central Air Conditioner Error Codes

E02

Evaporator Coil Freeze

2 fixes

E03

Compressor Overload Protection

2 fixes

E04

Indoor Air Temperature Sensor Fault

2 fixes

E05

Outdoor Condenser Fan Motor Failure

2 fixes

E06

High Pressure Switch Trip

2 fixes

E07

Indoor Blower Motor Overcurrent

2 fixes

E08

Outdoor Temperature Sensor Error

2 fixes

E09

Communication Error Between Indoor and Outdoor Units

2 fixes

People Also Ask About Trane XR13 13 SEER Central Air Conditioner Error E01

What does error code E01 mean on a Trane XR13 13 SEER Central Air Conditioner?

Error code E01 on the Trane XR13 13 SEER Central Air Conditioner means: Low Refrigerant Pressure. The unit detected refrigerant pressure below the normal threshold, indicating a possible leak or undercharge. This can cause the AC to fail to cool properly and may damage the compressor if not addressed.

How do I fix error code E01 on my Trane XR13 13 SEER Central Air Conditioner?

The most successful fix is "Replace Refrigerant Lines and Recharge" (hard difficulty, ~120 minutes). This fix costs nothing. HomeMD has 2 community-ranked fixes for this error.

Is error code E01 on a Trane XR13 13 SEER Central Air Conditioner serious?

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

Can I fix Trane XR13 13 SEER Central Air Conditioner error E01 myself?

Yes — the top-ranked community fix ("Replace Refrigerant Lines and Recharge") is rated hard difficulty and takes about 120 minutes. Tools needed: Brazing torch, Vacuum pump, Refrigerant recovery machine, Manifold gauge set.

How much does it cost to repair Trane XR13 13 SEER Central Air Conditioner error E01?

DIY cost: $0. Professional repair typically costs $500-$700. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Trane XR13 13 SEER Central Air Conditioner have?

The Trane XR13 13 SEER Central Air Conditioner has 8 other known error codes, including: E02 (Evaporator Coil Freeze), E03 (Compressor Overload Protection), E04 (Indoor Air Temperature Sensor Fault), E05 (Outdoor Condenser Fan Motor Failure), E06 (High Pressure Switch Trip), and 3 more.

Which other Trane models have the E01 error?

Error code E01 also appears on 1 other Trane model: S9V2B080U4 80,000 BTU 96% AFUE Two-Stage Variable Speed Gas Furnace. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Trane XR13 13 SEER Central Air Conditioner have?

The Trane XR13 13 SEER Central Air Conditioner has 8 other known error codes:

E02 — Evaporator Coil Freeze (2 fixes)
E03 — Compressor Overload Protection (2 fixes)
E04 — Indoor Air Temperature Sensor Fault (2 fixes)
E05 — Outdoor Condenser Fan Motor Failure (2 fixes)
E06 — High Pressure Switch Trip (2 fixes)
E07 — Indoor Blower Motor Overcurrent (2 fixes)
E08 — Outdoor Temperature Sensor Error (2 fixes)
E09 — Communication Error Between Indoor and Outdoor Units (2 fixes)

Which other Trane models have the E01 error?

Error code E01 also appears on 1 other Trane model:

S9V2B080U4 80,000 BTU 96% AFUE Two-Stage Variable Speed Gas Furnace (furnace) · 2 fixes

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