Troubleshooting by Remote Controller Si20-701_B
141
Remote Controller Display
E1
Applicable Models
CMSQ
Method of Error Detection
Check data from E²PROM
Error Decision Conditions
When data could not be correctly received from the
E²PROM
E²PROM : Type of nonvolatile memory. Maintains
memory contents even when the power supply is turned
OFF.
Supposed Causes
îš„ Defective outdoor unit PCB
Troubleshooting
Turn OFF the power
once and turn ON again.
Return to
normal?
YES
External factor
other than error
(for example,
noise etc.).
NO
Check if
inside/outside
relay wires of outdoor
unit main PCB is
disconnected.
YES
Connect the
inside/outside
relay wires
correctly.
NO
Replace the
outdoor unit main
PCB.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
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