🌡️Heat Pump

CAP-FAIL

Daikin · DZ20VC0361 20 SEER HP

Daikin DZ20VC0361 20 SEER HP CAP-FAIL Error Fix: Capacitor Failure

Run or start capacitor failure — the motor capacitor has bulged, leaked electrolyte, or lost capacitance, causing the compressor or fan motor to hum but not start

Medium severity2 fixes available✨ Free fix available

Quick Answer

Error CAP-FAIL on the Daikin DZ20VC0361 20 SEER HP means: Capacitor Failure. The top-ranked community fix is “Test and Replace the Run/Start Capacitor” (medium difficulty, ~30 min, DIY cost: $15-$25). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · heat pump

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 heat pump 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: $100-$150.

Other Daikin Models with Error CAP-FAIL

DX14SN0181 1.5 Ton 14 SEER Single-Stage Air Conditioner

air_conditioner · 2 fixes

DX16SA0361 16 SEER AC

air_conditioner · 2 fixes

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

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

Other Daikin DZ20VC0361 20 SEER HP Error Codes

COIL-ICE

Excessive Outdoor Coil Icing

Compressor Failure

Compressor Overheating

Contactor Failure

Defrost Cycle Not Initiating

Dirty Condenser Coil

Condensate Drain Clogged

2 fixes

FAN-MOTOR

Outdoor Fan Motor Failure

2 fixes

People Also Ask About Daikin DZ20VC0361 20 SEER HP Error CAP-FAIL

What does error code CAP-FAIL mean on a Daikin DZ20VC0361 20 SEER HP?

Error code CAP-FAIL on the Daikin DZ20VC0361 20 SEER HP means: Capacitor Failure. Run or start capacitor failure — the motor capacitor has bulged, leaked electrolyte, or lost capacitance, causing the compressor or fan motor to hum but not start

How do I fix error code CAP-FAIL on my Daikin DZ20VC0361 20 SEER HP?

The most successful fix is "Test and Replace the Run/Start Capacitor" (medium difficulty, ~30 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

Is error code CAP-FAIL on a Daikin DZ20VC0361 20 SEER HP 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 DZ20VC0361 20 SEER HP error CAP-FAIL myself?

Yes — the top-ranked community fix ("Test and Replace the Run/Start Capacitor") is rated medium difficulty and takes about 30 minutes. Tools needed: T20 Torx screwdriver, Digital multimeter with capacitance, Insulated screwdriver.

How much does it cost to repair Daikin DZ20VC0361 20 SEER HP error CAP-FAIL?

DIY cost: $15-$25. Professional repair typically costs $100-$150. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Daikin DZ20VC0361 20 SEER HP have?

The Daikin DZ20VC0361 20 SEER HP has 8 other known error codes, including: COIL-ICE (Excessive Outdoor Coil Icing), COMP-FAIL (Compressor Failure), COMP-OVERHEAT (Compressor Overheating), CONTACTOR (Contactor Failure), DEFROST-FAIL (Defrost Cycle Not Initiating), and 3 more.

Which other Daikin models have the CAP-FAIL error?

Error code CAP-FAIL also appears on 7 other Daikin models: DX14SN0181 1.5 Ton 14 SEER Single-Stage Air Conditioner, DX16SA0361 16 SEER AC, DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner, DX20VC0361 20 SEER AC, DZ14SA0301 2.5 Ton 14 SEER Single-Stage Heat Pump, DZ16SA0361 3 Ton 16 SEER Single-Stage 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 DZ20VC0361 20 SEER HP have?

The Daikin DZ20VC0361 20 SEER HP has 8 other known error codes:

COIL-ICE — Excessive Outdoor Coil Icing (2 fixes)
COMP-FAIL — Compressor Failure (2 fixes)
COMP-OVERHEAT — Compressor Overheating (2 fixes)
CONTACTOR — Contactor Failure (2 fixes)
DEFROST-FAIL — Defrost Cycle Not Initiating (2 fixes)
DIRTY-COND — Dirty Condenser Coil (2 fixes)
DRAIN-CLOG — Condensate Drain Clogged (2 fixes)
FAN-MOTOR — Outdoor Fan Motor Failure (2 fixes)

Which other Daikin models have the CAP-FAIL error?

Error code CAP-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
DX17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Air Conditioner (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

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