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Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
23
DIAGNOSIS AND SOLUTION (CONT.)
The Outdoor Fan Speed is Operating Outside of Normal Range (EC07)
Troubleshooting
NOTE: For certain models, the outdoor PCB can not be removed separately. In this case, the outdoor electric control box should be
replaced as a whole.
Error Code EC07
Malfunction decision conditions
When the outdoor fan speed runs too low or too high for a certain time, the LED displays the failure code
and the AC turns off.
Supposed causes
Connection wires
Fan assembly
Fan motor
Outdoor main PCB
YES
Power o, then restart the unit after 2 minutes.
Is it within normal parameters?
Replace the fan motor.
Does a problem remain? The unit is operating normally.NO
Shut o the power supply, rotate
the fan by hand.
YES
Does it turn easily? Find the cause of the problem and resolve it.NO
Check the wiring of fan motor.
YES
Is it improperly wired?
Ensure proper connections.
Measure the voltage for
the fan motor from the PCB.
YES
Replace the outdoor main PCB.NO
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