Table 4-2. Unit Preventive Maintenance Checks and Services (PMCS).
Item To Be
during unit operation.
Remove intake (return air) guard per
Remove air conditioning filter per para.
Check for loose or missing mounting
Remove debris from intake side of
Check for loose, cracked, or burned wire
leads and connectors.
Check for refrigerant leaks around
when unit is in operation.
coil mounting hardware.
Check for refrigerant leaks.
Remove any debris from condenser
Check for clogged or dirty screen.