3
Error display : e1
[Communication error between remote controller~Indoor unit]
| Indoor unit |
| Outdoor unit |
Red LED | Stays OFF | Red LED | Stays OFF |
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Green LED | Keeps flashing | Green LED | Keeps flashing |
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Note (1) The green LED in the outdoor unit is used in the FDCA301 ~ 601 models only.
Voltage | YES |
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between X and Z | Replacement remote | |||||
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approximately |
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| controller | |||
10~11 V? |
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NO |
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Voltage | NO |
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| YES | ||
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fluctuates between |
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5~11 V between |
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Y and Z. |
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| Power supply OFF | ||
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YES |
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Remote controller
wire is removed
Is the
resistance between NO Y~Z on the remote controller 
approximately
10kΩ?
Replacement
remote controller
Voltage | NO | |
fluctuates between | ||
5~10 V between |
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Y and Z |
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indoors. |
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YES |
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Voltage | NO | |
fluctuates between | ||
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5~10 V between |
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CNB Y and Z. |
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YES |
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Indoor unit | NO | |
resets every ❇ |
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4 minutes. |
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Remote controller wire disconnection
Terminal block CNB harness is defective.
Power supply reset
| Resistance is | NO |
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| approximately 10kΩ |
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| Replacement indoor | ||||
| between indoor |
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| unit control PCB | ||||
| Y~Z. |
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| YES |
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| Remote controller |
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| wire short circuit |
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| YES |
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| Noise? |
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Normal? |
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YES
Power supply reset
Normal?
NO
Replacement indoor
unit control PCB
❇After the green LED lights up once, it begins flashing again continuously. The louver moves once in the
close direction.
YES
Noise
NO
Replacement remote
controller
| Indoor unit |
| Outdoor unit | |
Red LED | Stays OFF | Red LED | Stays OFF | |
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Green LED | Stays OFF or Lights | Green LED | Keeps flashing | |
continuously | ||||
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Note (1) The green LED in the outdoor unit is used in the FDCA301 ~ 601 models only.
●Only case of FDT
Stays OFF
Is the voltage | NO | Check the CNW5- |
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between CNW8 |
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| CNW8 harness. |
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Lighting YES
Power supply reset
YES
Disconnection ?
NO
Is the
voltage at the transfomer's NO secondary side
or higher?
YES
Replacement indoor unit
power supply PCB
Harness exchange
Transformer
exchange
Normal | NO | Replacement indoor |
| unit control PCB | |
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YES
The unit is normal.
(The malfunction is due to noise, etc.)
●Cases of other than FDT
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| YES | Unit is normal. | ||||
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| Is it normalized? |
| (Runaway of indoor | ||||||
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| unit CPU due to | ||
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| NO |
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| noise, etc. |
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| Transient trouble) | ||||
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| Defective indoor unit control PCB |
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Power supply |
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reset |
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| Replace. (Defective CPU) |
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