❄️Air Conditioner

TXV-FAIL

Daikin · DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner

Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner TXV-FAIL Error Fix: Expansion Valve Failure

Thermostatic expansion valve (TXV) failure — the metering device is stuck open, stuck closed, or hunting, causing improper refrigerant flow and poor performance

Medium severity2 fixes available✨ Free fix available

Quick Answer

Error TXV-FAIL on the Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner means: Expansion Valve Failure. The top-ranked community fix is “Test and Replace the Thermostatic Expansion Valve (TXV)” (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.

When to Call a Professional

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

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: $400-$600.

Other Daikin Models with Error TXV-FAIL

DX14SN0181 1.5 Ton 14 SEER Single-Stage Air Conditioner

air_conditioner · 2 fixes

DX16SA0361 16 SEER AC

air_conditioner · 2 fixes

DX20VC0361 20 SEER AC

air_conditioner · 2 fixes

DZ14SA0301 2.5 Ton 14 SEER Single-Stage Heat Pump

heat_pump · 2 fixes

DZ16SA0361 3 Ton 16 SEER Single-Stage Heat Pump

heat_pump · 2 fixes

DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump

heat_pump · 2 fixes

DZ20VC0361 20 SEER HP

heat_pump · 2 fixes

Other Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner Error Codes

Capacitor Failure

Compressor Failure

Compressor Overheating

Contactor Failure

Dirty Condenser Coil

Condensate Drain Clogged

2 fixes

FAN-MOTOR

Outdoor Fan Motor Failure

2 fixes

FROZEN-COIL

Frozen Evaporator Coil

2 fixes

People Also Ask About Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner Error TXV-FAIL

What does error code TXV-FAIL mean on a Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner?

Error code TXV-FAIL on the Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner means: Expansion Valve Failure. Thermostatic expansion valve (TXV) failure — the metering device is stuck open, stuck closed, or hunting, causing improper refrigerant flow and poor performance

How do I fix error code TXV-FAIL on my Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner?

The most successful fix is "Test and Replace the Thermostatic Expansion Valve (TXV)" (hard difficulty, ~120 minutes). This fix costs nothing. HomeMD has 2 community-ranked fixes for this error.

Is error code TXV-FAIL on a Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner serious?

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Can I fix Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner error TXV-FAIL myself?

Yes — the top-ranked community fix ("Test and Replace the Thermostatic Expansion Valve (TXV)") is rated hard difficulty and takes about 120 minutes. Tools needed: Refrigerant recovery machine, Vacuum pump, Manifold gauge set, Adjustable wrenches, Phillips screwdriver, Multimeter.

How much does it cost to repair Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner error TXV-FAIL?

DIY cost: $0. Professional repair typically costs $400-$600. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner have?

The Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner has 8 other known error codes, including: CAP-FAIL (Capacitor Failure), COMP-FAIL (Compressor Failure), COMP-OVERHEAT (Compressor Overheating), CONTACTOR (Contactor Failure), DIRTY-COND (Dirty Condenser Coil), and 3 more.

Which other Daikin models have the TXV-FAIL error?

Error code TXV-FAIL also appears on 7 other Daikin models: DX14SN0181 1.5 Ton 14 SEER Single-Stage Air Conditioner, DX16SA0361 16 SEER AC, DX20VC0361 20 SEER AC, DZ14SA0301 2.5 Ton 14 SEER Single-Stage Heat Pump, DZ16SA0361 3 Ton 16 SEER Single-Stage Heat Pump, DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump, and 1 more. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner have?

The Daikin DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner has 8 other known error codes:

CAP-FAIL — Capacitor Failure (2 fixes)
COMP-FAIL — Compressor Failure (2 fixes)
COMP-OVERHEAT — Compressor Overheating (2 fixes)
CONTACTOR — Contactor Failure (2 fixes)
DIRTY-COND — Dirty Condenser Coil (2 fixes)
DRAIN-CLOG — Condensate Drain Clogged (2 fixes)
FAN-MOTOR — Outdoor Fan Motor Failure (2 fixes)
FROZEN-COIL — Frozen Evaporator Coil (2 fixes)

Which other Daikin models have the TXV-FAIL error?

Error code TXV-FAIL also appears on 7 other Daikin models:

DX14SN0181 1.5 Ton 14 SEER Single-Stage Air Conditioner (air conditioner) · 2 fixes
DX16SA0361 16 SEER AC (air conditioner) · 2 fixes
DX20VC0361 20 SEER AC (air conditioner) · 2 fixes
DZ14SA0301 2.5 Ton 14 SEER Single-Stage Heat Pump (heat pump) · 2 fixes
DZ16SA0361 3 Ton 16 SEER Single-Stage Heat Pump (heat pump) · 2 fixes
DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump (heat pump) · 2 fixes
DZ20VC0361 20 SEER HP (heat pump) · 2 fixes

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