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Electrical
<Table 11>
SYSTEM FAULTS
Compressor & O.D. Fan Won't Start
Compressor Will Not Start But O.D.
Fan Runs
O.D. Fan Won't Start
Compressor Hums But Won't Start
I.D. Fan Won't Start
SYSTEM FAULTS
Compressor & O.D. Fan Won't Start
Compressor Will Not Start But O.D.
Fan Runs
O.D. Fan Won't Start
Compressor Hums But Won't Start
I.D. Fan Won't Start
SYSTEM FAULTS
Compressor & O.D. Fan Won't Start
Compressor Will Not Start But O.D.
Fan Runs
O.D. Fan Won't Start
Compressor Hums But Won't Start
I.D. Fan Won't Start
SYSTEM FAULTS
Compressor & O.D. Fan Won't Start
Compressor Will Not Start But O.D.
Fan Runs
O.D. Fan Won't Start
Compressor Hums But Won't Start
I.D. Fan Won't Start
C: Cooling
RES: Restriction
• Components trouble shooting requires opening control box with power on . Use extreme care while working on
this condition . Check nameplate and this instruction when making wire connections .
WARNING
Rooftop_ODM_IBIM_EN_2020001B8001.indd 37
WHAT TO CHECK
MODE
C
C
C
C
C
COMPRESSOR
CAPACITOR
P
P
LOW VOLTAGE
WIRING
S
S
LOW VOLTAGE FUSE
P
S
P: Primary Causes
DEF: Defective
ENGLISH-37
HIGH VOLTAGE
POWER SUPPLY
WIRING
P
P
P
P
P
P
O.D. FAN
I.D. FAN CAPACITOR
CAPACITOR
P
P
CONTROL
THERMOSTAT
TRANSFORMER
P
S
P
S
STUCK
LPC SENSOR DEF.
COMPRESSOR
S
P
P
S: Secondary Causes
REF: Refrigerant
I.D. RELAY DEF.
S
CONTACTOR
CONTACTS
S
S
CONTACTOR COIL
P
HPC/HGS SENSOR
DEF.
S
O . D : Outdoor
2014-06-11 오후 8:07:26
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