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PREVENTATIVE
MAINTENANCE
Preventative maintenance is essential to proper unit
operation, efficiency and longevity. To assure equip-
ment operates properly it must be properly main-
tained. Equipment operation should be checked and
verified several times during each year.
During regular unit inspection and maintenance, fol-
low the guidelines below:
• Wash both sides of outdoor coil
• Wash basepan and outdoor vent filter
• Wash the indoor coil
• Clean the blower wheel and front panel
• Clean or install new indoor-air inlet filter(s)
• Ensure knobs are secure and operable
• Inspect cord and receptacle
• Secure electrical connections
• Ensure front panel is properly mounted and not
damaged
• Ensure wall sleeve is installed properly
• Ensure heat and cool cycles operate properly