Oasis CO33R - Page 43

TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY)
43
CONDITION TROUBLESHOOTING
Water Is On The Floor Check that the drain trap is free of debris.
Check that the drain hose is correctly positioned over evaporator pan.
Check store conditions.
• To prevent condensation in NSF/ANSI Type I environments, maximum
conditions are to be 55% relative humidity / 75° Fahrenheit.
• For NSF/ANSI Type II environments, maximum conditions are to be 55%
relative humidity / 80° Fahrenheit.
• If you are unsure if your unit is classified as NSF/ANSI Type I or Type II,
see tag next to serial label on your case.
Check that the hot gas condensate pan is properly connected and heating.
Wicking material (optional) may be dirty or worn and need replacement (hot
gas loop condensate system).
• Slide refrigeration system out from under unit.
• After refrigeration system has been slid out from under unit, replace
wicking material with new. If wicking material is not available, contact
Structural Concepts. See toll-free number at last page of this manual.
Fan Emits Excessive
Noise
Check that the case is aligned, level and plumb.
Check evaporator fan for cleanliness.
Unplug/power off fan motor. Check motor shaft for bearing wear.
Check that fan motor is securely mounted in bracket.
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.
Fan Is Not Working Check that the MAIN power switch is on.
Check that fan motor is plugged in at the fan shroud.
Check for foreign material obstructing fan performance.
Check that fan blades freely rotate within fan shroud.
Check that power is going to fan.
Check that fan wiring is connected on terminal blocks.
Digital Control Display
Is Blank
Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.
System Not Operating Check that the utility power is on.
Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.