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-13-
TROUBLESHOOTING
Symptom
Check Solution
The unit is not operating.
Check the power connection. Insert the power cord securely into the wall outlet.
Check if the water is full. Empty the drain pan by removing the rubber plug..
Refer to self evaporating drainage section of this
manual.
Check the room temperature.
The range of operating temperature is 41-95°F
(5-35°C).
The unit works with reduced
capacity.
Check the air lter to see if it needs
cleaning.
Clean the air lter.
Check if the air duct is blocked. Clear the obstacle.
Check if a room door or window is open
where unit is operating.
Keep the door and windows closed.
Check if the desired operating mode is
selected and the temperature is properly
set.
Set the mode and temperature to proper setting.
The exhaust hose is detached. Ensure the exhaust hose is securely attached.
Water Leakage
Overflow while moving the unit. Empty the water tank before transport. Refer to
self evaporating drainage section of manual.
Check if the drain hose is kinked or bends. Straighten the hose to avoid a trap existing.
Excessive Noise
Check if the unit is securely positioned. Ensure the unit is on a flat, rm surface
Check if any loose, vibrating parts. Secure and tighten any parts.
Noise sounds like water flowing. Noise comes from flowing refrigerant. This is
normal.
Error Codes
E0
Communication faults between main PCB
and display PCB.
Check the wire harness of the display PCB for
damage.
Ambient temperature sensor failure. Check connection or replace it. Clean or replace
the temperature sensor. Contact Royal Sovereign
customer service .
E1
Coil temperature sensor failures. Check connection or replace it. Clean or replace
the temperature sensor. Contact Royal Sovereign
customer service.
E2
Ft
Condensate water high level alarm. Empty the drain pan by removal the rubber plug.
Refer to self evaporating drainage section of
manual.
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