Troubleshooting - Merax EX287226AAA Benutzerhandbuch

5. Do not get in eyes, on skin, or on clothing. Do not breathe vapors or gas.
6. Prevent entry to sewers and public waters.
7. Stop the source of the release, if safe to do so. Consider the use of water spray to disperse vapors.
8. Isolate the area until gas has dispersed. Ventilate and gas test area before entering. Contact
competent authorities after a spill.

7. TROUBLESHOOTING

Symptom
 Check the power connection in
securely.
The unit is
 Check if the water full?
not
operating.
 Check the room temperature.
 Check the air filter for dirt.
 Check if the air duct is blocked.
 Check if the room door or
The unit
window is open.
works with
reduced
 Check if the desired operating
capacity.
mode is selected and the
temperature is properly set.
 The exhaust hose is detached.
 Overflow while moving the unit.
Water
 Check if the drain hose is kinked
Leakage
or bends.
 Check if the unit is securely
positioned.
 Check if any loose, vibrating
Excessive
parts.
Noise
 Noise sounds like water flowing.
 Communication faults between
E0
main PCB and display PCB.
 Ambient temperature sensor
E1
failure
Error
Codes
 Coil temperature sensor failures.
E2
 Condensate water high level
Ft
alarm.
Inspection Solution
 Insert the power cord securely into
the wall Outlet.
 Empty the drain pan by remove the
rubber plug.
 The range of operating temperature
is 5-35°C.
 Clean the air filter as necessary.
 To clear the obstacle.
 Keep the door and windows closed.
 Set the mode and temperature at
proper set-point according the
manual.
 Make sure the exhaust hose is
securely attached.
 Empty the water tank before
transport.
 Straighten the hose to avoid a trap
existing.
 Place the unit on horizontal and
firm ground.
 Secure and tight the parts.
 Noise comes from flowing
refrigerant. This is normal.
 Check the wiring harness of the
display PCB for damage.
 Check connection or replace it. To
clean or replace the temperature
sensor.
 Check connection or replace it. To
clean or replace the temperature
sensor.
 Empty the drain pan by removing
the rubber plug.
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