SxS+MODEL+(FRS-20xx, Schematy
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PROBLEM & DEFECTS :
Noise of fan motors
Series
Model
All SxS models
PROBLEM
CAUSE
CORRECTIVE ACTION
1. Mi-com on the main PCB controls fan motors
PRODUCTION
* F/R fan motors make working noise.
to work turbo mode ;
1. Decreasing F/R-fan motors RPM by 350RPM
to keep & to restore the compartment
* Turbo operation mode
temperature.
(Application from 16-Aug. 2005)
Fan motors work like turbo engine to cool down
2. F/R-fan voltages & RPM
the compartments
when there is frequent door openings or
▷
SBS 580 litters models
[ before ]
[ after ]
▷
SBS 580 litters models
much foods are loaded suddenly.
input voltage
F FAN
R FAN
input voltage
F FAN
R FAN
normal
12 V
2200 rpm
2200 rpm
normal
12 V
2200 rpm
1850 rpm
turbo
14 V
2500 rpm
2500 rpm
turbo
14 V
2500 rpm
2150 rpm
mode
mode
▷
SBS 690 litters models
▷
SBS 690 litters models
input voltage
F FAN
R FAN
input voltage
F FAN
R FAN
normal
12 V
1800 rpm
2200 rpm
normal
12 V
14 V
1800 rpm
2150 rpm
turbo
14 V
2000 rpm
2500 rpm
turbo
2000 rpm
2150 rpm
mode
mode
SERVICE TROUBLESHOOTING
* Change the fan motor assembly.
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