2-114
Service Manual
OPERATION
8.
Troubleshooting
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Phenomenon
Cause and Action
Operation Stopped
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wired controller are turned
2))
The micro-computer is activated to protect the
device from electromagnetic waves. Restart the
operation.
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Restart the operation. If the instantaneous power
failure is within two seconds, the operation restarts
automatically.
White Steam
from Indoor Unit
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dried.
White Smoke
from Indoor Unit
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Operation Season
This might occur when dust attached to the heat
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Mist from Indoor Unit
In Restaurant or Kitchen
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During Dry Operation
This might occur when the air outlet temperature
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This might occur when the air outlet temperature
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Odor from Indoor Unit
Odor Discharged from
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This might occur when the smell of cigarette smoke
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Ventilate the unit well in the fan mode and clean the
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Sound from Indoor Unit
Grate is heard when starting
or stopping the operation.
This is the sound made when the components are
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temperature change.
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or the drain-up mechanism drains water. The
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temporarily right after the air
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Condensation on
Front Panel
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drips
This might occur when the operation is performed
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Temperature Irregularity
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temperature of each air outlet
are irregular.
This might occur for structural reasons, such as the
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“HOT-START” on LCD Turned ON
This might occur according to the operation mode
or operation conditions.
Operation Mode on LCD Flashing
Summary of Contents for YVAHP072B31S
Page 2: ......
Page 10: ...viii Service Manual ...
Page 16: ......
Page 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Page 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
Page 920: ......
Page 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Page 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Page 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
Page 1728: ......
Page 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Page 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Page 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
Page 1795: ......
Page 1796: ... 2015 Johnson Controls Inc SM 15001 ...