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SiUS28-902_B
Troubleshooting by Indication on the Remote Controller
Service Diagnosis
105
3.14 Outdoor Unit PCB Abnormality
Remote
Controller
Display
E1
Applicable
Models
RZR, RZQ
Method of Error
Detection
Micro-computer checks whether E
2
PROM is normal.
Error Decision
Conditions
When E
2
PROM error when turning the power supply ON
Supposed
Causes
Defective outdoor unit PCB
Defective fan motor
External factor (Noise, etc.)
Troubleshooting
External factor (
N
oise, etc.)
Is normal reset
possi
b
le?
YES
N
O
T
u
rn the po
w
er s
u
pply OFF
once and then
b
ack O
N
.
Replace the o
u
tdoor control
PCB (A1P).
Is the
error code "
E1
"
displayed on the remote
controller?
Check the fan motor.
YES
N
O
T
u
rn OFF the po
w
er s
u
pply,
remo
v
e the fan motor
connector and then t
u
rn O
N
the po
w
er s
u
pply again.
Caution
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
the connector or parts may
b
e damaged.