LG DLGX3701W Service Manual

28 29
Check lint Filter
Clean if needed.
Explain to owner responsibility
-
formance and safety reason.
Run dryer on a heat cycle for
one minute.
If heat is felt, unit may have a
vent problem, Investigate venting
system.
Is vent too long?
Fully or partially clogged, etc?
outlet.
Check with meter at L1 and L2
On out let.
Correct voltage = 208~240Vac
±10%
Is voltage of outlet within correct
range?
3-1 Connection with a Power
Supply Cord
Check voltage of connector to
connector (
~ . ~ )
CAUTION: Potential for voltages
over 200Vac. Proceed with care.
Heating = 208~240Vac
Stop = 0
Troubleshooting
for inadequate
End-user must
use correct outlet
or have outlet
repaired by
electrician.
Defective main
PCB
Unplug UNIT / Check heater
elements.
Terminal: 1(COM) – 2 = 10Ω
Terminal: 1(COM) – 3 = 10Ω
Terminal: 2 – 3 = 20Ω
Unplug UNIT / Test thermostats
Hi-limit
Open at 257 ± 9
(125 ± 5
) ∞
Close at 221 ± 9
(94 ± 7
) 5Ω
Safety
Open at 284 ± 41
(140 ± 5
) ∞
Close at -31
(-35
) 5Ω
Defective
Thermostat. If
Safety thermostat
Is open, replace
Both after
Determining what
Caused thermo-
stat
to open
One or both
Heater elements
defective.
Defective Motor
Unplug UNIT / Check centrifugal
switch
Are motor readings normal?
Resistance value =
30mmΩ
Retest heating circuit
No
Yes
No
No
No
Yes
Yes
No
Yes
No
Yes
No
Yes
Not heating (Electric)
26

LG DLGX3701W Specifications

General

Brand	LG
Model	DLGX3701W
Category	Dryer
Language	English