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cn
2-5, Defrosting
failure
Problems
Causes
Checks
Measures
Remarks
No defrosting.
Heater does not generate heat as
the heating wire is cut or the circuit
is shorted.
1) Heating wire is damaged when
inserting into the evaporator.
2) Lead wire of heater is cut.
3) Heating wire at lead wire contacts
is cut.
Sucking duct and discharging
hole
are clogged:
1. Impurities,
2. Ice.
Gap between Sucking duct and
Heater plate(Ice in the gap).
Wrong heater rating (or wrong
assembly),
1, Check the resistance of heater.
O_;_: S hort. _:
Cut.
Tens to thousands
_: OK,
2. Check the resistance between
housing terminal and heater
surface.
OQ: Short, o=Q: Cut.
Tens to thousands _]: Short.
1. Confirm foreign materials. In case
of ice, insert the copper line
through the hole to check,
2. Put hot water into the drain
(check drains outside).
1. Confirm in the Sucking duct.
1. Check heater label,
2. Confirm the capacity after
substituting the resistance value
into the formula.
p= _
(V: Rated voltage of user country)
R
(R: Resletanceof tester[Q])
--
Compare P and level capacity,
Tolerance: ±7%
Heating wire is short and wire is cut.
• Parts replacement:
Refer to paris
explanations,
1) Push out impurities by inserting
copper wire. (Turn off more than
3hours and pour in hot water if
frost is severe.)
2) Put in hot water to melt down frost
3) Check the water outlet.
4) Push the heater plate to sucking
duct manually and assemble the
disconnected
parts.
1) Turn offthe
power, confirm
impunfies and ice in the gap, and
supply hot water until the ice in the
gap melts down.
2) Push the Heater plate to drain
bottom with hand and assemble
the disconnected
parts.
Faults:replace,
- How to replace: Refer to main parts.
Seal the lead wire with
insulation tape and heat
contraction tube if the cut
lead wire is accessible to
repair.
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