9.3 Troubles and Solutions
If any the following abnormal conditions occur, turn off the power supply immediately.
Please contact our dealer.
Indicator lamps flash rapidly, after your disconnecting and connecting the unit, the
situation is the same.
Fuse or circuit breaker work frequently.
Foreign matter or water has fallen into the unit.
Remote controller is disabled or the switch is out of hand.
TROUBLES
Any other unusual conditioner is observed.
If any of the following conditions occur, check your unit and resolve corresponding problems referring
to given remediation. If the trouble can't be settled contact our dealer.
Trouble Cause
Solutions
Power failure.
Wait for the comeback of power
Power switch is open.
Switch on the power
Fuse of power switch may have blown.
Replace the fuse
Batteries of remote controller are exhausted.
Replace the batteries
Unit does not
start
The time is not start-up time you have set.
Wait or cancel the time set.
Temperature is not set correctly.
Set the temperature properly.
Door or window is open.
Close door and window.
Air filter is blocked with dust or dirtiness.
Clean the air filter.
Inlet/outlet of indoor/outdoor units are
blocked.
Clear all blockages.
Inlet/outlet of indoor/outdoor units are
blocked.
Clear the blockage, then restart
your operation.
Air flowing
normally with
low cooling
(heating) effect
Be in 3 minutes protection of compressor
Wait
NOTE: Do not replace electric wire or repair the air conditioner by yourself to avoid possible danger.
Summary of Contents for YOHC 12
Page 7: ...Part 2 Indoor units Ceiling Floor Type ...
Page 17: ...4 Service space 600mm 600mm ...
Page 20: ...6 1 3 YOKC 24 6 1 4 YOKC 30 ...
Page 21: ...6 1 5 YOKC 36 6 1 6 YOKC 48 YOKC 60 ...
Page 30: ...Discharge angle 60 FLOOR Airflow velocity Temperature ...
Page 37: ...Part 3 Outdoor Units Outdoor Units ...
Page 39: ...1 Dimensions 1 1 YOJC 12 290 315 285 530 62 590 750 110 1 2 YOJC 18 12 5 ...
Page 40: ...1 3 YOJC 24 330 62 895 860 590 141 1 4 YOJC 30 YOJC 36 ...
Page 41: ...1 5 YOJC 48 YOJC 60 ...
Page 43: ...3 Wiring diagrams 3 1 Cooling Heating 3 1 1 YOJC 12 3 1 2 YOJC 18 ...
Page 46: ...4 Field Wiring ...
Page 49: ...7 Sound levels 1m Microphone 12000btu h 18000btu h ...
Page 50: ...24000btu h 3000btu h 36000btu h 48000btu h 60000btu h ...
Page 66: ...Part 4 Installation Installation ...
Page 75: ...www johnsoncontrols com SM YOHC 12 60GB 03 07 ...