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Gold Star window A/C R5207Y3 Evaporator ice buildup

Have had this unit for about 5 years, recently the front of the evaporator freezes over with ice and cooling capacity is lost. Followed troubleshooting guide to reduce thermostat setting and this worked but as soon as I turn the thermostat back to cool the ice forms. Is she just tired or is there something else I can do?

Thanks, Bill

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  • turtlecurls Sep 06, 2008

    I'm also getting ice visibly on a lot of the fin area & coils. About half the fin area doesn't have ice. I've been suspecting low freon since spring before this started anyway. The air didn't seem quite as cold & was staying on longer & it's a very old unit that has needed a top off every one in a while in the past. It must be 5 years since I've called someone.

    Earlier I cleared the overflow tube out, but that was a wasted effort. It did seem to be running slow.

    I just hope the repair man will be willing to top it, instead of insisting on a new unit or leak testing. It is a slow loss.

  • kamailei_200 Apr 25, 2009

    i have the same problem, but the ice covers the evaporator, almost completely, and the coils on both the right and left side......i never tried to turn the thermostat down? or was it up? i also dont know where the "overflow tube" is either. i also don't know if a few of the fins being bent has anything to do with the fact that the air blows cool, not cold anymore. how would i know if the freon is low or not? please help me, summer is around the corner, and i cant stand the heat. mahalo!



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This is njormally an issue with oversizing but this should have manifested itself the 1st time you used it, unless you have relocated the unit. If you have reinstalled it in its original location and if you have cleaned the coils as required, then you have a low freon issue that only a professional should resolve.
Tip: If the ice is building up in 1 small area and not evenly across the complete evaporator coil, then you definitely are low on freon.

Posted on Jun 11, 2008


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