Sharp JH-1600E, Service Manual

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Error code
E-27(D-27)
Recovery method : C
Description Relay open
Protection level ---
Activation time ---
Cause Relay is damage.
Check If the error message “E-27” appears frequently after restart the solar power
conditioner, the solar power conditioner is in abnormal condition. If this error
occurs four times successively, “d-27” is displayed and the solar power
conditioner stops.
Case.1
Action Replace a new solar power conditioner.
Cause Relay detector circuit is abnormal.
Check If the error message “E-27” appears frequently after restart the solar power
conditioner, the solar power conditioner is in abnormal condition. If this error
occurs four times successively, “d-27” is displayed and the solar power
conditioner stops.
Case.2
Action Replace a new solar power conditioner.
Error code
E-28
Recovery method : C
Description DC bus voltage abnormal.
Protection level ---
Activation time ---
Cause Noise interference
Check Confirm that the AC and PV terminal noise. If the noise is large beyond
acceptable.
Case.1
Action Turn off solar power conditioner immediately. Restart solar power conditioner
after noise is disappearance.
Cause DC bus voltage detector circuit or boost stage circuit is failed.
Check Check the voltage of all input terminal of the solar power conditioner is correct
or not. If the error message “E-28” appears frequently after confirming the PV
array voltage. The solar power conditioner is damaged.
Case.2
Action Replace a new solar power conditioner.
Error code
d-40
Recovery method : D