Maintenance - Carrier 38LF048 Installation, Start-Up And Service Instructions Manual

Maintenance

Warning! To avoid the possibility of electric shock, before performing any cleaning and maintenance
operations always turn off power to the system. If the indoor unit is on a separate switch, be sure it is also
disconnected.
Ensure that tubing is cool. Beware of rotating fan and energized electrical components.
Cleaning coil :
Ensure power to unit is disconnected. Wire grilles may be removed simply be lifting grilles upwards so that
grille legs clear holes in base pan and then pulling them towards you (Fig. 4). Clean coil with water from
ordinary hose at a pressure high enough to clean efficiently. Coils are double row and may be separated
carefully and sufficiently be loosening screws at one end of the coil so that dirt may be flushed out towards the
outside of both coils. Avoid splashing mud on coil or water onto fan motor.
Condensing fan adjustment :
The fan should be adjusted by loosening the set screws and moving the fan blade up or down. The final
position of the fan relative to the louvers should be as shown in Fig. 5.
Condenser fan removal :
Shut off power to unit.
Open control box cover and remove fan motor wire leads from attached components.
Remove fan deck and then the 3 mounting nuts between fan bracket and deck.
Remove 3 nuts between motor bracket and motor.
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