Bosch B26FT70SNS Repair Manual page 38

8-2. Freezer Compartment
8-2-1. Freezing failure . (Foods are not frozen / cold.)
Any error code
on Front PCB?
Does Comp.
work?
F-Fan & C-Fan
work ok?
Temp-Fuse is ok?
(on the evaporator)
Defrost heater
Is ok?
Ice formation on Eva.
is ok?
Start
N
Y
N
Y
Y
Y
Y
Y
N
Change OLP/PTC
F-Fan & C-Fan
motor is ok?
Y
Wiring connection
is ok?
N
N
Defrost heater : 200W (≒ 66Ω)
(Left & Right side of Evaporator)
N
37
Refer to error display
in operation and function
OLP/PTC
is OK?
N
N
defective motor
Y
Change Main PCB
N
Check lead wire
Change Temp-Fuse
※ Left & Right side of evaporator
Check ice formation on Eva.
and if refrigerant leak
is found, repair it.
Y
Change the
Comp.
Change the
Change the
Defrost heater.