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15
Section 4
Maintenance
Maintenance Chart
Area Task Frequency
Evaporator
Check for proper defrosting Monthly
Clean the coil and drain pan
Every 6 months
Check for proper drainage
Condenser
Inspect /clean the coil if the air supply is near polluting sources (such as cooking appliances) Monthly
Clean the coil surface Every 6 months
General
Check/tighten all electrical connections, wiring, and insulators
Every 6 months
Ensure the defrost time clock is set
Ensure all fan motors are working and do not have excessive vibration
Ensure all housings, covers, and guards are in place and tight
Check all fan motors
Check operation of the drain line heater and examine the heater and drain line for cuts and
abrasions (outdoor models)
Failure to keep the condenser coil clean will result in reduced airflow through the condenser, resulting in poor system
performance and premature compressor failure.
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