Si20-701_B Troubleshooting by Remote Controller
140
3.23
E1
Outdoor Unit PCB
Abnormality
Remote Controller Display
E1
Applicable Model
R(Y)-LU, RR-M
Method of Error Detection
A micro-computer checks whether or not E
2
PROM is
normal.
Error Decision Conditions
When E
2
PROM error when turning the power supply ON
Possible Causes
îš„ Defective outdoor unit PCB
Troubleshooting
Turn the power supply
OFF and turn the power
ON.
Reset
normally?
YES
External factor
(Noise, or etc.)
NO
Replace the
outdoor unit
PCB.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
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