Troubleshooting Table; Table 10-2 Troubleshooting Problems, Causes And Correction - Emerson Liebert SRC18 User Manual

10.5 Troubleshooting Table

Table 10-2 lists problems, possible causes, and a corrective action.

Table 10-2 Troubleshooting problems, causes and correction

Problem
Unit does not emit cool air
The fan speed cannot be
adjusted.
The temperature cannot be
adjusted.
The unit stops during
operation.
The indoor unit is still
operating even when the
power has been turned off.
The air outlet on the indoor
unit is discharging mist.
Water leaks from the outdoor
unit.
There is a noise or vibration.
The indoor unit gives off an
odor.
Depending on mode, some functions may not be supported.
Possible Causes
Air is not circulating properly.
The air filter is dirty.
The room temperature is too high.
Cold air is escaping from the room.
The desired temperature is higher than the set
temperature.
There is a heating source nearby.
Fan Mode is selected.
Outside temperature is too high.
The Jet Mode or Auto Operation Mode is
selected.
The Fan Mode or Jet Mode is selected.
The unit is suddenly turned off.
A power failure has occurred during operation.
The Auto Clean function is being operated.
The cooled air from the unit makes mist.
In heating operation, condensed water drops
from the heat exchanger.
A clicking sound cab be hard when the unit
starts or stops due to movement of the
reversing valve.
Creaking sound: The plastic parts of the indoor
unit creak due to sudden temperature
changes.
Flowing or Blowing sound: This is the flow of
the refrigerant through the unit.
Odors (such as cigarette smoke) may be
absorbed into the indoor unit and discharged
with air flow.
• Make sure that there are not curtains, blinds,
or furniture blocking the front of the unit.
• Clean the air filter once every 2 weeks. See
9.1, Cleaning the Air Filter, page 102.
• In summer, cooling the indoor air fully may
take some time. In this case, select Power
Cool to cool the indoor air quickly.
• Make sure that no cold air is escaping
through ventilation points in the room.
• Set the desired temperature to a level lower
than the current temperature.
• Avoid using heat generators like electric
ovens or gas burners while the unit is
operating.
• During fan mode, air blows from the unit
without cooling or heating the indoor air.
• Switch the operation mode to cooling.
• The cooling effect may not be sufficient.
• In some operation modes, you cannot adjust
the fan speed. Select an operation mode in
which you can adjust the fan speed.
• In some operation modes, you cannot adjust
the temperature. Select an operation mode
in which you can adjust the temperature.
• The Timer Function may have timed-out,
which turns the unit off. Check the
timer/schedule settings.
• Wat for the power to come back. If you have
the Auto Restart function enabled, your unit
will resume in its last operation mode several
minutes after power is restored.
• All the Auto Clean function to continue
because it removes any remaining moisture
inside the indoor unit. If you do not want it to
continue, turn the unit off.
• When the room temperature decreases, the
phenomenon will disappear.
• This requires installing a drain hose under
the base pan. Contact the installer.
• These are normal occurrences. The noise
will stop.
• If the smell does not disappear, wash the air
filter. If this does not work, contact service to
clean the heat exchanger.
109
Troubleshooting
Corrective Action
®
Liebert SRC™ User Manual