Bosch CLC6101i-W 50 HE - Page 35

4-15
Climate Class 6100i / 6000i / 8100i / 8000i
3.CHART FOR READING SELF-DIAGNOSIS RESULT
Problem
symptom
Outdoor
unit
indica-
tion
(LED1)
Malfunction
No.*
Content of diagnosis
Check point Action
Main Sub Main Sub
Normal
condition
Normal
blinking
0 0 Normal
Indoor and
outdoor
units do
not oper-
ate.
1-time 1 0 Outdoor unit
thermistor
short-circuit
Heat exchanger
thermistor short
circuit error
1) Measure the resistanceof
the outdoor unit thermis-
tors.
2) Check the lead wire of
the outdoor unit thermis-
tor for torn sheath and
shortcircuit.
3) No abnormality found
in above inspections (1)
and (2).
1) Replace the outdoor
unit thermistor assem-
bly.
2) Replace the outdoor
unit thermistor assem-
bly.
3) Replace the outdoor
unit control PWB as-
sembly.
1 Outdoor temper-
ature thermistor
short circuit error
2 Suction thermis-
tor short circuit
error
3 2-way valve
thermistor short
circuit error
4 Heatsink thermis-
tor error
- Replace the outdoor unit
control PWB.
Indoor and
outdoor
units
do not
operate.
2-time 2 0 Cycle
temperature
Compressor high
temperature error
1) Check the outdoor unit
air outlet for blockage.
1) Ensure unobstructed
air ow from the outdoor
unit air outlet.
2) Check if the power sup-
ply voltage is AC 230V at
full power.
2) Connect power supply
of proper voltage.
3) Check the pipe connec-
tions for refrigerant leaks.
3) Charge the specied
amount of refrigerant.
4) Measure resistance of
the outdoor unit compres-
sor thermistor.
4) Replace the outdoor
unit compressor ther-
mistor assembly.
5) Check the expansion
valve for proper opera-
tion.
5) Replace the expansion
valve coil, expansion
valve or outdoor unit
control PWB assembly.