Lennox SSB*H4: Maintenance

Outdoor Unit

• Clean and inspect the outdoor coil. The coil may be flushed with a water hose. Ensure the power is turned off before you clean the coil.

• Check all wiring for loose connections.

• Check for correct voltage at unit (unit operating).

• Check amp draw on outdoor fan motor.

• Condenser fan motor is prelubricated and sealed. No further lubrication is needed.

• Visually inspect connecting lines and coils for evidence of oil leaks.

Indoor Unit

• Clean or change filters.

• Lennox blower motors are pre-lubricated and permanently sealed. No more lubrication is needed.

• Adjust blower speed for cooling. Measure the pressure drop over the coil to determine the correct blower CFM. Refer to the unit information service manual for pressure drop tables and procedure.

• Belt Drive Blowers - Check belt for wear and proper tension.

• Check all wiring for loose connections.

• Check for correct voltage at unit. (blower operating)

• Check amp draw on blower motor.

Indoor Coil

• Clean coil if necessary.

• Check connecting lines, joints and coil for evidence of oil leaks.

• Check condensate line and clean if necessary.