Periodical Checks - Carrier 53KLE-H SERIES Service Maintenance Manual

18. PERIODICAL CHECKS

For a good operation of the air conditioner it is recommended to carry out checks and maintenance as
indicated.
Recommended maintenance intervals may very depending on the installation environment, e.g. dusty zones,
etc.
Indoor Unit
Clean air filter
Clean drain pipe (2)
Change controller batteries
Outdoor Unit
Clean outdoor coil from outside (2)
Clean outdoor coil from inside
Blow air over electric parts (2)
Check electric connection tightening (2)
Clean fan wheel (2)
Check fan tightening (2)
Clean drain pan (2)
(1) Increase frequency in dusty zones.
(2) Operations to be carried out by qualified service personnel.
Every Month Every 4 Months
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(1)
Every Month Every 4 Months
23
Every Year
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Every Year
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