🌡️Heat Pump

REV-VALVE

Daikin · DZ20VC0361 20 SEER HP

Daikin DZ20VC0361 20 SEER HP REV-VALVE Error Fix: Reversing Valve Failure

Reversing valve failure — the four-way reversing valve is mechanically stuck or its solenoid coil has failed, leaving the heat pump locked in either heating or cooling mode

Medium severity2 fixes available✨ Free fix available

Quick Answer

Error REV-VALVE on the Daikin DZ20VC0361 20 SEER HP means: Reversing Valve Failure. The top-ranked community fix is “Test and Replace the Reversing Valve Solenoid Coil” (hard difficulty, ~90 min, DIY cost: $5-$15). 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: $250-$400.

Other Daikin Models with Error REV-VALVE

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

CAP-FAIL

Capacitor Failure

2 fixes

COIL-ICE

Excessive Outdoor Coil Icing

Compressor Failure

Compressor Overheating

Contactor Failure

Defrost Cycle Not Initiating

Dirty Condenser Coil

Condensate Drain Clogged

2 fixes

People Also Ask About Daikin DZ20VC0361 20 SEER HP Error REV-VALVE

What does error code REV-VALVE mean on a Daikin DZ20VC0361 20 SEER HP?

Error code REV-VALVE on the Daikin DZ20VC0361 20 SEER HP means: Reversing Valve Failure. Reversing valve failure — the four-way reversing valve is mechanically stuck or its solenoid coil has failed, leaving the heat pump locked in either heating or cooling mode

How do I fix error code REV-VALVE on my Daikin DZ20VC0361 20 SEER HP?

The most successful fix is "Test and Replace the Reversing Valve Solenoid Coil" (hard difficulty, ~90 minutes). Estimated DIY cost: $5-$15. HomeMD has 2 community-ranked fixes for this error.

Is error code REV-VALVE 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 REV-VALVE myself?

Yes — the top-ranked community fix ("Test and Replace the Reversing Valve Solenoid Coil") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Multimeter.

How much does it cost to repair Daikin DZ20VC0361 20 SEER HP error REV-VALVE?

DIY cost: $5-$15. Professional repair typically costs $250-$400. 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: CAP-FAIL (Capacitor Failure), COIL-ICE (Excessive Outdoor Coil Icing), COMP-FAIL (Compressor Failure), COMP-OVERHEAT (Compressor Overheating), CONTACTOR (Contactor Failure), and 3 more.

Which other Daikin models have the REV-VALVE error?

Error code REV-VALVE also appears on 3 other Daikin models: 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. 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:

CAP-FAIL — Capacitor Failure (2 fixes)
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)

Which other Daikin models have the REV-VALVE error?

Error code REV-VALVE also appears on 3 other Daikin models:

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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