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SiUS28-902_a
Troubleshooting by Indication on the Remote Controller
Troubleshooting
108
3.18 “
E7
” Malfunction of Outdoor Unit Fan Motor
Remote
Controller
Display
E7
Applicable
Models
RZQ18~30PVJU
Method of
Malfunction
Detection
Malfunction of fan motor system is detected according to the fan speed detected by hall IC
when the fan motor runs.
Malfunction
Decision
Conditions
When the fan runs with speed less than a specified one for 6 seconds or more when the fan
motor running conditions are met
When malfunction is generated 4 times, the system shuts down.
Supposed
Causes
Malfunction of fan motor
The harness connector between fan motor and P.C.B. is left in disconnected, or faulty
connector
Fan does not run due to foreign matters tangled
Clearing condition: Operate for 5 minutes (normal)
Troubleshooting
Connector
of fan motor is
disconnected.
YES
N
O
N
O
YES
Can the fan
b
e t
u
rned smoothly
w
ith hand after disconnect
the connector of
fan motor?
Is there any
o
b
stacle aro
u
nd
the fan?
YES
N
O
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 co
u
ld
b
e damaged.
Connect the connector.
Remo
v
e the o
b
stacle.
Replace the fan motor of
o
u
tdoor
u
nit.
YES
N
O
Replace the fan motor of
o
u
tdoor
u
nit.
Replace the o
u
tdoor
u
nit
P.C.B.
Are the
resistances
b
et
w
een pins
a
b
o
v
e j
u
dgement?
Check 3
Check on connector of fan
motor
(P.15
8
)
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