TROUBLESHOOTING
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the elec-
WARNING! trical breaker or disconnect the power supply plug, and consult authorized service personnel. Merely turning off the unit’s power switch will not completely disconnect the unit from the power source. Always be sure to turn off the electrical breaker or disconnect the power supply plug to ensure that power is completely off.
Before requesting service, perform the following checks:
| Symptom | Problem | See Page |
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NORMAL | Doesn’t operate immedi- | ● If the unit is stopped and then immediately started again, the com- |
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FUNCTION | ately: | pressor will not operate for about 3 minutes, in order to prevent |
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| fuse blowouts. | — |
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| ● Whenever the Power Supply Plug is disconnected and then re- | |
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| connected to a power outlet, the protection circuit will operate for |
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| about 3 minutes, preventing unit operation during that period. |
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| Noise is heard: | ● During operation and immediately after stopping the unit, the |
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| sound of water flowing in the air conditioner’s piping may be |
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| heard. Also, noise may be particularly noticeable for about 2 to 3 |
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| minutes after starting operation (sound of coolant flowing). | — |
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| ● During operation, a slight squeaking sound may be heard. This is |
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| the result of minute expansion and contraction of the front cover |
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| due to temperature changes. |
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| Smells: | ● Some smell may be emitted from the indoor unit. This smell is |
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| the result of room smells (furniture, tobacco, etc.) which have | — |
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| been taken into the air conditioner. |
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| Mist or steam are | ● During Cooling or Dry operation, a thin mist may be seen emitted |
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| emitted: | from the indoor unit. This results from the sudden Cooling of | — |
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| room air by the air emitted from the air conditioner, resulting in | |
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| condensation and misting. |
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| Airflow is weak or stops: | ● The fan may operate at very low speed during Dry operation or | 5 |
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| when the unit is monitoring the room’s temperature. | |
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| ● During SUPER QUIET operation, the fan will operate at very low | 5 |
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| speed. |
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| ● In the monitor AUTO operation, the fan will operate at very low | 5 |
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| speed. |
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