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COIL-ICE

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

Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump COIL-ICE Error Fix: Excessive Outdoor Coil Icing

Excessive outdoor coil icing in heating mode — ice buildup on the outdoor heat exchanger exceeds normal defrost capability, caused by low refrigerant, airflow restrictions, or defrost system failure

Medium severity2 fixes available✨ Free fix available
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Quick Answer

Error COIL-ICE on the Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump means: Excessive Outdoor Coil Icing. The top-ranked community fix is “Diagnose Refrigerant Levels and Defrost System Components” (hard difficulty, ~90 min, DIY cost: $0). 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 COIL-ICE

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

DZ20VC0361 20 SEER HP

heat_pump · 2 fixes

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

People Also Ask About Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump Error COIL-ICE

What does error code COIL-ICE mean on a Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump?
Error code COIL-ICE on the Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump means: Excessive Outdoor Coil Icing. Excessive outdoor coil icing in heating mode — ice buildup on the outdoor heat exchanger exceeds normal defrost capability, caused by low refrigerant, airflow restrictions, or defrost system failure
How do I fix error code COIL-ICE on my Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump?
The most successful fix is "Diagnose Refrigerant Levels and Defrost System Components" (hard difficulty, ~90 minutes). This fix costs nothing. HomeMD has 2 community-ranked fixes for this error.
Is error code COIL-ICE on a Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump 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 DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump error COIL-ICE myself?
Yes — the top-ranked community fix ("Diagnose Refrigerant Levels and Defrost System Components") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Refrigerant manifold gauge set, Multimeter, Leak detector.
How much does it cost to repair Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump error COIL-ICE?
DIY cost: $0. 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 DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump have?
The Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump has 8 other known error codes, including: CAP-FAIL (Capacitor Failure), 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 COIL-ICE error?
Error code COIL-ICE 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, DZ20VC0361 20 SEER HP. The fix may vary by model, so check each model's specific page for tailored repair steps.
What other error codes does the Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump have?

The Daikin DZ17VSS036 3 Ton 17 SEER2 Daikin Fit Side-Discharge Heat Pump has 8 other known error codes:

Which other Daikin models have the COIL-ICE error?

Error code COIL-ICE also appears on 3 other Daikin models:

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