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TROUBLE DIAGNOSIS
CLAIMS.
3. Refrigeration
is weak.
CAUSES AND CHECK POINTS.
4) No cooling air circulation.
Faultyfan motor. -- Fan is
i- FanshroudcontadL - Clearance.
turbaned. I- Damp_ evapora_
cor_act
'- Accumulated residualfrost.
Small cooling air -- I_t
Fanoverload,- Fan_.
discharge,
mot_ RPM _ Bad _w tenn_att_
_:SMd_te_:s,
_- Ratedpowermisuse.
L Low '_ago.
-- Fau]tyfan, l-Fan misuse.
l_d shape.
Loose connec_on. - NCt_Igh_connected,
L]nserldepth.
-- Shone.
BanL
-- Iceandf_gn
_
m _
p_ts.
5) Compresaor
capacity.
F Ralbgmisuse.
srn_ m moly.
L
LOW
V_.
6) Refngerant
i- Maifunc_anofd'_'_ng cylind_
too much or too little.
_ _%of_e_..Fa_ymmpmssor
'
7) Continuous
operation
- No contact of temperature controller. - Foreign materials.
8) Damper opens oontinuousiy.
i
Foreign matedals
[-- pM r_t_ldump.
jammed.
_
EPS water sed_t
L_ Screw,
Failed sensor, - Positlon of sensor.
'_ Characteristics
r
Bad characteristics of its own temperatue.
of damper.
_-- Parts misuse.
L
Charge of temperature - Impact.
characteristics.
9) Food stodng place. - Near the outlet of cooling air.
HOW TO CHECK
• Check visuallyafter
disassembly,
• Check visually after
disassembly.
- 69 -
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