Oasis CO34R Installation And Operating Manual page 22

TROUBLESHOOTING [TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY] - PAGE 2 of 3
CONDITION
Fan Emits Excessive
Noise
Fans Are Not Working Check that the MAIN power switch is on.
Digital Control Display
Is Blank
System Not Operating Check that the utility power is on.
Check that the case is aligned, level and plumb.
Check evaporator fan for cleanliness.
Unplug/power off fan motors. Check motor shaft for bearing wear.
Check that fan motors are securely mounted in brackets.
Verify that fan blades are securely mounted to fan motor.
Check that nothing is preventing blade rotation.
Check that the fan shroud is properly secured.
Check that fans are plugged in at the fan shroud.
Check for foreign material obstructing fan performance.
Check that fan blades freely rotate within fan shrouds
Check that power is going to fans
Check that fan wiring is connected on terminal blocks.
Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.
Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.
TROUBLESHOOTING
22