Gas and Oil Home Heating Furnaces - Condenser Icing

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ipacketeer
12-06-02, 02:39 PM
This morning outside it was about 28 F, inside 68 F and the vents were discharging cool air, curiosity, so I went to take a look at the OD unit, the inner and the outer walls of the condenser was covered with white ice. I observed the unit for quite while, it was going on and off about every 10 munites. I presume the defrosting cycle was kicking in to prevent further icing. Can anyone comment on this. Regards

ZJ JIM 96
12-06-02, 03:07 PM
I didn't want to post the same question as another thread, but I experienced the same thing today.

So far, I have melted all the frost/ice, with hot water, and sprayed the interior and exterior with Rain-X de-icing windshield washer fluid, which is supposted to deter the formation of frost to -20 degrees. I have no idea if it will actually work, in this application. What is the "real" fix for this?:confused:

Thanks for any advice. This is my first post.
hvac01453
12-06-02, 03:43 PM
Your units are not defrosting properly. Some units have a defrost board, then again the reversing valve may be defective for some reason. This is not a do it yourself project by any means!
You'll know if it goes into defrost because the outdoor fan stops turning and the reversing valve makes a big gush sound, if the fan stops and the unit doesn't make the big gushing sound, the reversing valve may be defective if it has voltage, this depends on the valve, some de-energized for cooling and some do just the opposite....... call a tech before you destroy the heat pump.