ESIE13-02
Error Codes: Outdoor Units
103
Part 4 – Troubleshooting
4
3
4
5
4
4
Error Codes: Outdoor Units
4.1
“E1”
Outdoor Unit PCB Abnormality
Remote controller
display
E1
Method of
malfunction
detection
Microcomputer checks whether E
2
PROM is normal.
Malfunction
decision conditions
E
2
PROM:
When E
2
PROM malfunctions when turning the power supply on
Supposed causes
Faulty outdoor unit PCB
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Turn the power supply
off once and
then back on
Problem could be caused by
external factor (noise, etc.) other
than malfunction.
Fan motor check
Replace the outdoor PC board (A1P)
ERHQ***V3* / ERLQ***V3
Replace the control PC board (A1P)
ERHQ***W1* / ERLQ***W1
NO
NO
YES
YES
Is normal reset
possible?
Turn
the power
supply off and
disconnect the fan motor
connector from the PCB, then
turn the power supply on
again. Is "E1"
displayed?