Error Code 61; 2.16.1 Error Diagnosis And Countermeasure Flow Chart - Bosch AHUW036A2 Service Manual

2.16

Error code 61

Display
code Title Cause of error
61 High • Overload
temperatur operation
e in (outdoor fan
condenser constraint,
pipe screened,
blocked)
• Unit heat
exchanger
contaminate
d
• EEV
connector
displaced /
poor EEV
assembly
• Poor
condenser
pipe sensor
assembly /
broken
Table 32 Error code 61

2.16.1 Error diagnosis and countermeasure flow chart

Is the unit properly No ->
installed?
Yes
Is the refrigerant No ->
properly charged?
Yes
Is the EEV properly No ->
assembled?
Yes
Is the condenser pipe No ->
sensor normal?
Yes
Recheck power and
installation condition
Table 33 Error diagnosis and countermeasure chart
Inspecting condenser pipe sensor
1. Set multi-tester as resistance measurement mode.
2. Measure the resistance between rated speed compressor discharge
sensor connector pins.
3. Measure resistance value of 5k 10% (25 °C basis).
4. Check if the sensor insulation is damaged --> measure the resistance
between sensor connector pin and unit assembly pipe 1M .
Split ODU – 6 720 817 722 (2015/06)
Check point & Normal
condition
1. Check outdoor fan
constraint / screened /
flow structure
2. Check if refrigerant is
overcharged
3. Check the status of the
EEV assembly
4. Check the status of
sensor assembly
1. Check fan locking
2. Remove blockings around heat
exchanger
3. Maintain distance between
unit and the wall
4. Check pipe folding and
abnormality
5. Check SVC lock
1. Check if refrigerant is
overcharged
--> Adjust refrigerant volume
1. Check the status of PCB
(inverter) CN-EEV1 assembly
2. Check the status of EEV
assembly
--> Reassemble / replace if
abnormality is found
1. Check the sensor assembly
status
2. Check if the sensor is burned:
measure resistance
-->5k 10% (25 °C basis)
Error handling instructions for Split outdoor unit
Fig. 27 CN-C/PIPE connector
[1] CN-C/PIPE (Violet 3Pin connector)
1
6 720 817 722-35.1I
29