15
NO NO
NO
YES
NO
YES
NO
YES YES
YES
NO
NO
YES
YES
NO
YES
YE
YES
NO
Does the fan for
circulating cold
air operate?
Check for continuity
between terminal 3 and 4
and by pressing the door
switch (F, R) lever
Faulty door
switch
Does the fan motor rotate
when pressing the door with
switch? Lever?
Pressing of the door
switch on the door
panel is in faulty
condition
Is the fan blade affected
by foreign material or
frost? Is motor locking?
Remove foreign
material, frost and
replace motor
Is fan motor coil short-
circuited?
Replace the fan motor
Is evaporator
gathered with
heavy frost or
ice?
Defrost control faulty (see
page) 12
Does evaporator
get cold when F-
Thermostat by-
passed
Replace defrost timer
F-thermostat is in faulty
condition
Replace the F-
thermostat
Does evaporator get
cool partially only
after operating for
more than 30 minutes?
Is measured revolution of fan
motor 1,100 rmp?
Fan motor faulty.
Replace motor
Defective freeing cycle
unit
