Hello my name is XXXXX XXXXX going to help you out today.
Do you have the model number? H3 error code on these is usually compressor overload but would like to have your model number to verify.
If you check the ouside unit and it flashes 8 times then it's in compressor overload.
If this is the case I would check the pressures on the unit it may be low. Also make sure filters are clean.
Ted, thanks for the response. I think I found the issue but would like your feedback. The outside unit comes pre-charged but the instructions don't advise how to "release" the charge. The outside unit comes with a valve on the high pressure and the low pressure connection port that must be released using an allen wrench. I was unaware of the two valves so they remained closed after I first powered up the unit. With no fluid flow, the compressor overheated / over pressured after a short period. Once the two valves were opened, the system appears to be operating correctly. The system seems to be stable with the low pressure side at about 115 PSI ( 38 degrees) witht he outside ambient at 83 degrees. The interior has been cooling nicely for several hours.
BTW, the model number is XXXXX
Does all this make sense? Anything else I should look into?
Yeah, did you pull a vacuum on the line set before opening and releasing the charge from condenser?
It always necessary to pull a vacuum on a/c line set whenever it's open to the atmosphere. Outside of that it seems your keeping cool and set. If you have any other questions just let me know.
Thanks for using JA If I have helped solve your issue please accept my answer and provide positive feedback, Ted
I did pull a vacuum for 30 minutes and then check it after another 30 minutes. It was stable.