Error Diagnosis And Troubleshooting; Remote Maintenance; Field Maintenance - Bosch CLIMATE 5000 Service Manual

Troubleshooting
5.3

Error Diagnosis and Troubleshooting

WARNING
Be sure to turn off unit before any maintenance to prevent damage or
injury.
5.3.1

Remote maintenance

SUGGESTION: When troubles occur, please check the following points
with customers before field maintenance.
Problem
1 Unit will not start
2 The power switch is on but fans will not
start
3 The temperature on the display board
cannot be set
4 Unit is on but the wind is not cold(hot)
5 Unit runs, but shortly stops
6 The unit startup and stop frequently
7 Unit runs continuously but insufficient
cooling(heating)
8 Cool can not change to heat
9 Unit is noisy
Table 10.
5.3.2

Field maintenance

Problem
1 Unit will not start
2 Compressor will not start but fans run
3 Compressor and condenser (outdoor) fan
will not start
4 Evaporator (indoor) fan will not start
5 Condenser (Outdoor) fan will not start
6 Unit runs, but shortly stops
7 Compressor short-cycles due to overload
8 High discharge pressure
9 Low discharge pressure
10 High suction pressure
11 Low suction pressure
12 Unit runs continuously but insufficient
cooling
13 Too cool
14 Compressor is noisy
15 Horizontal louver can not revolve
Table 11.
38
Solution
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Solution
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CLIMATE 5000 RAC SINGLE SPLIT (R32) – 6720894076 (2019/08)