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Help with Goodman GSXC16 Error code 04

EdTheHeaterMan
EdTheHeaterMan Member Posts: 10,799
in Radiant Heating

3 years ago my son installed a new Goodman GSXC16024 that has been working fine for the first two summers, and the beginning of this summer. About 3 weeks ago there was no AC and he found error code 04 on the condensing unit PCB display. I wanted to look up the technical documents for this unit and I am unable to find the IO manual or Trouble shooting info online. Does anyone here (other than @pecmsg) have info that might help? Is there a technical bulletin on this particular issue?

Cycling the 220 vac off to the outdoor unit and the indoor unit will bring the system back to operation. It will operate for several days and the stop. Now it is becoming more frequent.

There was a discussion on this same issue in 2021 on HVACTechTalk, but I did not see any resolution on that thread.

I think that he may need to call goodman tech support when he is at the equipment in order to get the answers, but I seem to be his GoTo tech support person on all things automotive, Oil Heat and HVAC, so that is why I'm asking

Edward Young Retired

After you make that expensive repair and you still have the same problem, What will you check next?

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