Bosch CLC6101i-W 50 HE Service Manual page 24

Climate Class 6100i / 6000i / 8100i / 8000i
Item Mode
Outside air tem- Auto
perature
thermistor
(TH3)
Cooling
Dehumidifying
Heating
Suction pipe Cooling
thermistor Dehumidifying
(TH4)
Heating
2-way valve Cooling
thermistor Dehumidifying
(TH5)
Heating
When resistance is
Control opera- low (temperature
tion judged higher than
actual)
Operation mode Cooling mode is
judgment activated even if room
temperature is low.
Operation not Normal operation.
affected
Rating control Defrosting operation is
Defrosting activated unnecessari-
ly.
Expansion valve Compressor operates,
control but room does not be-
come cool (expansion
valve is open).
Expansion valve Compressor operates,
control but room does not be-
come warm (expansion
valve is open).
Expansion valve Frost accumulates on
control indoor unit evaporator
and room does not be-
come cool (expansion
valve is closed).
Operation not Normal operation.
affected
Short-circuit
Outdoor unit
thermistor
short-circuit error
indication.
Outdoor unit
thermistor
short-circuit error
indication.
Outdoor unit
thermistor
short-circuit error
indication.
Outdoor unit
thermistor
short-circuit error
indication.
Outdoor unit
thermistor
short-circuit error
indication.
Outdoor unit
thermistor
short-circuit error
indication.
Outdoor unit
thermistor
short-circuit error
indication.
4-4
When resistance is
high (temperature
Open-circuit
judged lower than
actual)
Heating mode is ac- Outdoor unit therm-
tivated even if room istor open-circuit
temperature is high. error indication.
Normal operation. Outdoor unit therm-
istor open-circuit
error indication.
Defrosting operation Outdoor unit therm-
is not activated, and istor open-circuit
frost accumulates error indication.
on outdoor unit.
Frost accumulates Outdoor unit therm-
on evaporator inlet istor open-circuit
section, and room error indication.
does not become
cool (expansion
valve is closed).
Frost accumulates Outdoor unit therm-
on expansion valve istor open-circuit
outlet section, error indication.
and room does
not become warm
(expansion valve is
closed).
Compressor oper- Outdoor unit therm-
ates, but room does istor open-circuit
not become cool error indication.
(expansion valve is
open).
Normal operation. Outdoor unit therm-
istor open-circuit
error indication.