Fix DIY Mr Cool PC 04 code Not Cooling or Heating

First I thought all the refrigerant leaked due to low pressure reading. However adding refrigerant was not necessary. The mistake I made during install was not tightening the refrigerant lines to the unit enough. Skip to 5:17 to see the real issue

[@jontarnowski8163]

THANK YOU!! After watching your video I went to check my line connections and, sure enough, the threads were still showing. I was cautious not to ‘over-tighten’ per the instructions and now live tighten them all the way down (no threads showing) and now have powerful, consistent A/C and heat flow 👍

Fixed my problem in seconds. Was about to go house on Amazon and Mr Cool. Thanks!

[@heather_the_artist2]

On ours neither the heat nor the AC is working. Does doing this fix both?

I have not tried AC yet since it's still too cold up here in the North. But I'm confident it will be fine. I do recommend a torque wrench if you can get one@@heather_the_artist2

[@carolmatt2959]

Needle nose pliers? I’m trying to take you serious, but come on dude!

[@MelvinAlc]

Why people don’t take the plastic from gauge meters when they buy

[@jimbean8202]

Need to unscrew that valve with the allen wrench

[@MrAllexes]

set the temperature on 78, air blowing out of the unit is 79, how does it work?

[@ForgottenLegendsOfTomorrow]

should be blowing cooler air than the surroundings. if you got the pc04 code this video may help, otherwise I'm not sure but contact mr cool and they can try to help you

[@kamilwiewiora5694]

Czyli powodem błędu PC04 była zbyt mała ilość czynnika?

[@ForgottenLegendsOfTomorrow]

yes, the refrigerant was not released from the line because I did not tighten the connection enough

[@jerryhuff86]

What you did does not explain your results.

[@ForgottenLegendsOfTomorrow]

I added more detail in the description