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Goodman DSZC180481 Error Codes

Updated · by Aurora Star Tech Inc.

Goodman DSZC180481 error codes and diagnostic codes. The DSZC180481 is a Goodman heat pump in the Goodman/Amana ComfortNet ASZC/GSZC/DSZC series.

Homeowner with a heat pump problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Goodman DSZC180481 error codes list

CodeMeaningSeverity
01Low side fault or low pressure switch tripHigh
02High side fault or high pressure switch tripHigh
03Short cyclingMedium
04Locked rotorCritical
05Open circuit - compressor off over 4 hoursHigh
06Open start circuitCritical
07Open run circuitCritical
08No line voltageHigh
09Low 24 V control voltageMedium
A2Outdoor air temperature sensor faultMedium
A3Outdoor coil temperature sensor faultHigh
b0Indoor blower not running when it should beHigh
b9Indoor airflow lower than requestedMedium
d0No shared data on the networkHigh
d1Invalid shared data on the networkHigh
d2System mismatch - indoor unit cannot supply required airflowMedium
d3Configuration mismatch - shared data does not match hardwareHigh
d4Shared data from the loader rejectedHigh
E5Outdoor control low-voltage fuse openHigh
EEOutdoor control fault - compressor relay contacts weldedHigh
H8High line voltageHigh
L1Lockout - low pressure switch tripped 3 timesHigh
L2Lockout - high pressure switch tripped 3 timesHigh
L6Lockout - open start circuit detected 4 timesCritical
L7Lockout - open run circuit detected 4 timesCritical
L8Low line voltageHigh
P0Compressor protector openHigh
Yellow 1 flashLow side fault / low pressure trip / low pressure lockout (older ComfortNet board)High
Yellow 2 flashesHigh side fault / high pressure trip / high pressure lockout (older ComfortNet board)High
Yellow 3 flashesShort cycling (older ComfortNet board)Medium
Yellow 4 flashesLocked rotor (older ComfortNet board)Critical
Yellow 5 flashesOpen circuit (older ComfortNet board)High
Yellow 6 flashesOpen start circuit / lockout (older ComfortNet board)Critical
Yellow 7 flashesOpen run circuit / lockout (older ComfortNet board)Critical
Yellow 8 flashesLow or high line voltage (older ComfortNet board)High
Yellow 9 flashesLow 24 V control voltage (older ComfortNet board)Medium
Yellow ON + Red ONCompressor protector open (older ComfortNet board)High

Troubleshooting the DSZC180481

All Goodman Heat Pump error codes →

Homeowner help: AC Running But Not Cooling: What to Check · Heat Pump Not Heating or Blowing Cold Air

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

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