TROUBLESHOOTING (CONT.)
PROBLEM | POSSIBLE CAUSES | SOLUTIONS |
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The LED Display is showing “E5” | Low Voltage Protection | • Unplug for 10 minutes and then |
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| turn on the unit. If “E5” is still dis- |
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| played, contact customer service. |
The LED Display is showing “H8” | The backup water tank is full | • Drain the water tank |
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| • If the “H8” I still displayed after the |
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| water tank has been emptied, con- |
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| tact customer service. |
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The LED Display is showing “F1 ”
The LED Display is showing “F2 ”
The room air temperature sensor malfunction.
The tube temperature sensor malfunction.
•Please inform the maintenance man to maintain
•Please inform the maintenance man to maintain
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