5. Troubleshooting
5-1 Basic Checkpoints for Troubleshooting
Check the basic checkpoints first to determine whether it is machine trouble or a problem in the
operation method. When it is not related to the basic checkpoints, perform checking in accordance
with the procedures of troubleshooting by symptom.
1) Is the voltage of the power source appropriate ?
(1)It should be within the range of AC 198V ~ 264V.
(2)The air conditioner may not operate properly when the voltage is out of this range.
2) Is the connection with the fan motor, compressor wire, and starting condenser
appropriately made ?
3) The symptoms listed in the table below are not indicative of machine trouble.
Symptom Cause and check
No operation • Check whether there is power failure or the power plug is pulled out.
• Check whether the unit is stopped as a result of completion
of the sleep time.
• Pull out the power plug for ten seconds, and then insert it again.
Air flows, but • Check whether the Air filter is clogged with dust or is dirty.
no cooling • Check whether the desired temperature is too high. Set the desired
no Heating • temperature to a lower level than the current temperature.(Cooling)
• Check whether it is in "FAN" mode.
• Check whether the desired temperature is too low. Set the desired
temperature to a higher level than the current temperature.(Heating)
• Check whether the unit is deicing.
The remocon does • Check whether battery is completely depleted.
not operate • Check whether the battery is properly inserted.
• Check whether the receiving window of the remocon for the assembly
panel PCB is blinded.
• Check whether the remocon is affected by jamming due to a neon sign.
No temperature • Check whether the unit is in "FAN" mode.
setting (In "FAN" mode, only the current temperature is displayed, and the
desired temperature is not set.)
•
Checking and Display of Fault Area
Samsung Electronics 5-1
ERROR OPERATION
ROOM THERMISTOR
(OPEN OR SHORT)
INDOOR PIPE THERMISTOR
(OPEN OF SHORT)
OUTDOOR PIPE THERMISTOR
(OPEN OR SHORT)
7-SEG
LED DISPLAY
"E1" displayed
"E5" displayed
"E6" displayed
(J)DB98-03455A(1)-2 9/12/01 1:25 PM Page 5-1
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