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Goodman Error Code E5: Outdoor control low-voltage fuse open (AC)

Updated · by Aurora Star Tech Inc.

Goodman error code E5 on a air conditioner means: Outdoor control low-voltage fuse open. It is also called Goodman diagnostic code E5.

High severityAir ConditionerAlso Heat PumpGoodman/Amana ComfortNet ASXC/GSXC/DSXC

Homeowner? What Goodman code E5 means for you

Call a technician Your air conditioner is reporting: Outdoor control low-voltage fuse open. The air conditioner has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Safe things you can check yourself

  • Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
  • Check both breakers and the outdoor disconnect box beside the outdoor unit; all should be ON.
  • Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
  • Keep about 2 feet around the outdoor unit clear of leaves, grass and debris.
  • If you see ice on the pipes or the indoor coil, turn the system off and run only the fan for a few hours, then call a technician.
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Goodman error code E5 mean?

The 24 V fuse on the outdoor control has blown, so the A/C or heat pump does not run.

Applies to: Communicating 2-stage condensers and heat pumps with the PCBHR104 or PCBHR105 outdoor control (7-segment display): ASXC16/18, GSXC16/18, DSXC16/18, ASZC16/18, GSZC16/18, DSZC16/18

Common causes of Goodman code E5

  • Short to ground or between conductors in the low-voltage wiring
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Goodman models that use code E5

Show all 23 models

ASXC160241ASXC160361ASXC160481ASXC160601ASXC180241ASXC180361ASXC180481ASXC180601DSXC160241DSXC160361DSXC160481DSXC160601DSXC180361DSXC180481DSXC180601GSXC160241GSXC160361GSXC160481GSXC160601GSXC180241GSXC180361GSXC180481GSXC180601

Other Goodman AC codes

CodeMeaning
CoreSense solid redSolid red TRIP - call present but compressor not running
d0No shared data on the network
d1Invalid shared data on the network
d2System mismatch - indoor unit cannot supply required airflow
d3Configuration mismatch - shared data does not match hardware
d4Shared data from the loader rejected
EEOutdoor control fault - compressor relay contacts welded
H8High line voltage
L1Lockout - low pressure switch tripped 3 times
L2Lockout - high pressure switch tripped 3 times
L6Lockout - open start circuit detected 4 times
L7Lockout - open run circuit detected 4 times

All Goodman Air Conditioner error codes →

Goodman code E5: homeowner questions

What does Goodman code E5 mean?

Outdoor control low-voltage fuse open. The 24 V fuse on the outdoor control has blown, so the A/C or heat pump does not run.

Is it safe to keep using my air conditioner with code E5?

It depends on the cause. The air conditioner has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Can I reset Goodman code E5 myself?

You can try one reset (power off for 30 seconds, then on). If Goodman code E5 comes back, the cause is still there and a licensed technician should check it.

Who can fix Goodman code E5 near me?

Aurora Star Tech Inc. repairs Goodman air conditioners in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Homeowner help: AC Running But Not Cooling: What to Check

Troubleshooting guides

Source: Goodman ComfortNet ASXC/GSXC/DSXC, ASZC/GSZC/DSZC, AVPTC/MBVC service manual, Unitary Diagnostic Codes PCBHR104 p.71-77 and PCBHR105 p.78-84. Written in our own words as a summary; always check the original manual.

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.

Emergency HVAC Service

647-657-2977