Having problems with your Air Conditioners ?

Frost build-up we keep getting build-up at the back of the unit; it has been getting worse from days to hours to see any frost starting. any ideas?

Answers :

Either the unit has developed a small refrigerant leak or the unit needs a good cleaning. It sounds like the unit is a portable type unit. I would remove the unit and do an extensive cleaning and then retry the unit. If it continues, it's time to replace it. Trying to find a leak is more costly than replacing it. They are usually not easy to find.
Two things will cause this: low air flow or low refrigerant. If you are in cooling mode then check your filter and indoor air flow. If that's good then you'll have to get a technician to check your refrigerant. If it's low it has a leak that needs to be fixed.

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