Troubleshooting - Sharp UL-C10EA-W User Manual

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2. Clean filter
Use a vacuum cleaner or water to clean the filter. If the filter is very
dirty (such as grease), use warm water 40°C with neutral detergent
dissolved to clean and then put at shady place to dry it.
3. Install filter
After the filter is cleaned and dried, ensure that it is reinstalled
correctly.
NOTE
ū The filter should be cleaned about once every three months. If there is
a large amount of dust in the operation environment, you can increase
cleaning frequency.
ū Do not dry the filter with a direct heat source or hair drier. Otherwise, it
may be deformed or catch fire.
Clean heat discharge pipe
Remove the heat discharge pipe from air conditioner, clean and dry it,
and then reinstall it. (For the method of installation, please refer to the
instruction for "Installing heat discharge pipe".)
Checking before use-season
• Check whether air inlets and air outlets are blocked.
• Check whether plug and socket are in good condition.
• Check whether filter is clean.
• Check whether batteries are installed in remote control.
• Check whether joint, window bracket and heat discharge pipe are
installed firmly.
• Check whether heat discharge pipe is damaged.
Checking after use-season
1. Disconnect power supply.
2. Clean filter and outer case.
3. Remove dust and sundries on the air conditioner.
4. Eliminate accumulated water in chassis (refer to the section of
"Removing collected water" for details).
5. Check whether window bracket is damaged or not.
6. If yes, please contact the dealer.
Long-time storage
If you don't use the air conditioner for a long time, please maintain it by
following steps for good performance:
• Make sure that there is no accumulated water in chassis and the heat
discharge pipe is disassembled.
• Pull out the plug and wrap the power cord.
• Clean the air conditioner and pack it well to prevent dust.
Notice for recovery
• Some of the packing items are recyclable materials. Please deal with
them through your local recycling provider.
• If you want to dispose the air conditioner, please contact local authority
or consultant service center for the correct disposal method.

Troubleshooting

Before calling for service, please review the troubleshooting list below,
since the problem may not be a main unit malfunction.
Air conditioner can't operate
Cause / Action
• Power failure? / Wait after power recovery.
• Is plug loose? / Reinsert the plug.
• Whether the air switch is tripped off or fuse is burnt? / Ask professional
person to replace air switch or fuse.
• Is there malfunction for the circuit? / Ask professional person to replace
circuit.
• Whether the unit is restarted up after stopping immediately? / Wait for 3
minutes, and then turn on the unit again.
Water flowing noise
Cause / Action
• Whether the unit is turned on or turned off just now? / There's flowing
sound of refrigerant inside the air conditioner which is the normal
phenomenon.
Poor cooling (heating)
Cause / Action
• Is the power too low? / Wait after voltage is resumed.
• Whether the air filter is too dirty? / Clean the air filter.
• Has the correct temperature been set? / Adjust the temperature.
• Whether door and window are closed? / Close door and window.
Air conditioner can't receive signal from remote control or remote
control is not sensible.
Cause / Action
• Whether the unit is interfered seriously (such as static pressure, unstable
voltage)? / Please pull out the plug. Insert the plug after about 3 minutes,
and then turn on the unit.
• Whether remote controller is within the receiving range? / The receiving
range of remote controller is 8 meters . Do not exceed this range.
• Whether it's blocked by obstacles? / Remove the obstacles.
• Is sensitivity of remote controller low? / Check the batteries of remote
controller. If the power is low, please replace the batteries.
• Whether there's fluorescence lamp in the room? / Move the remote
controller close to air conditioner. Turn off the fluorescence lamp and
try it again.
Cracking noise
Cause / Action
• Whether the unit is turned on or turned off just now? / Heat expansion
or shrinkage for the panel due to change of temperature, which cause
friction sound.
There's abnormal sound during operation
Cause / Action
• Whether the unit is interfered by thunder, radio, etc? / Disconnect power,
put through the power again, and then turn on the unit again.
Odors
Cause / Action
• There's off-flavour source in the room, such as furniture, cigarette etc. /
Eliminate the off-flavour source. Clean the filter.