Michael Hagan
After mediating damage done by rodents residing in the control panel during the off-seaons, I finally have my heat pump up and running. I am experiencing a disconcerting ice formation on the outside of the unit, all aroung the base of the evaporation fins (I think that's what the black radiator-looking "U" shaped perimeter of the unit is called. What do you think is going on? The pool temperature is rising, but perhaps (and I am not sure of this) the output termperature seems lower than what I remember in past seasons, but that may or may not be the case.

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Marcus Miller
Dear Mr. Hagan:
Sorry about the critters. I see them destroy heaters in 10 million dollar homes all the time. You will see ice if the heater is running at night or the temperature is below 55 degrees outside. The main thing I care about is that the air coming out the top of the heater is 5 to 10 degrees colder than the outside air. If the heater is icing when it is 70 out then we need to call for service.
 
Sincerely,
Marcus Miller
360 568 3718
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