11-7. Troubleshooting
Primary check
Turn off the power breaker once, and turn on again after 10 seconds.
Does the OPERATION indicator flash?
YES
Turn off the power breaker and remove CN34 (Micro switch connector).
Is DC12V applied
between 1 (Red/DC12V) and (Brown/GND) of CN1 of the
YES
Is there conduction of
NO
Is there conduction of
NO
NO | Is DC12V applied | NO | |
between 1 (+) and 2 | |||
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| P.C. board (MCC5020)? |
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NO
To item “Power supply is not turned on”
Replace the main P.C. board (MCC5020)
Replace
• Conduction check of
YES
1)Check operation while
2)Perform air purifying operation by the remote controller.
•In this time, check that the remote controller is in status which is shortened by time on the reactivation preventive timer and all display indicators go on for approx. 3 seconds
when a signal is received.
( If time on the reactivation preventive timer is not shortened,) the
•While the air purifier operates, check that the fan speed [AUTO] is not displayed. (Because the power ON/OFF is controlled on the program)
3)Be sure not to touch the electric dust collector, ionizer, or ionized wire unit with the human body.
Push the switch
ON → ON
Release the switch
→OFF
Tester
Operation check
| Does the indoor fan rotate? |
| NO |
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| Does the PURE indicator (Blue) or |
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| Replace the main P.C. board (MCC5020). |
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| the FILTER indicator (Orange) go on? |
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| • | How to check output of the air purifier | |||||||
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| Does the PURE indicator |
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| applied between | NO |
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| go off within 2 seconds after |
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| it was ON, and does the FILTER |
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| indicator (Orange) go on? |
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| of CN33 of the main |
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| P.C. board? |
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| output | |||
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| Are the electric dust | NO |
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| Dry the electric |
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| collector and ionizer dried? |
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| dust collector |
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| (Electrode check) |
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| and ionizer. |
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| GND | |
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| Ionizer | ||
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| Referring to the right figure, check the |
| Be sure not to |
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| (NOTE) |
| to the gray part |
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| Use an exclusive high voltage tester; |
| or not to touch |
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| otherwise the tester may be broken. |
| the ionized |
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| YES |
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| Refer to items, cleaning and check |
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| Is output of the ionizer | NO |
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| for the electric dust collector/ionizer/ |
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| approx. 4.0 kV to 4.8 kV? | Replace the | |||||||||||||||||
| ionized wire units. |
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| Is output of the collector |
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| When the ionized wire is |
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| approx. 3.0 kV to 3.8 kV? |
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| disconnected or when dirt is |
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| ( not cleaned even cleaned, | ) |
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| YES |
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| replace each unit. |
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| Are the electric dust |
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| collector/ionizer/ionized |
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| YES | NO |
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| wire units dirty? | No trouble |
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| Is an abnormal sound |
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| (cracking noise) heard |
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| from the electrode? |
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