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Thread: No defrost on Daikin
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11-04-2008, 08:09 AM #1
No defrost on Daikin
Hi Guys. I normally work on commercial refrigeration plants, but was asked to look at a Daikin heat pump because it kept on icing up (outdoor coil) on heat mode. I reclaimed and recharged the system so the critical charge is good. The sensors (coil and ambient) test out ok.
The whole coil is icing evenly except for the bottom 200mm where their is no ice.
Could this be a sign of a blocked capillary which is not cooling the defrost sensor to bring in the defrost?
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