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Service Manual
Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)
8.6.15 Main Parts Check
1. Temperature sensor check
WARNING: ELECTRICAL HAZARD
f Be sure to turn off all power supplies or disconnect all wires
to avoid electric shock.
f Operate after compressor and coil have returned to normal
temperature to avoid injury.
f Disconnect the temperature sensor from PCB.
f Measure the resistance value of the sensor using a multi-meter.
f Check corresponding temperature sensor resistance value table
(Appendix 1).
Figure 85
The picture and the value are only for reference, actual condition and
specific value may vary.
Temperature sensors:
f Room temp.(T1) sensor,
f Indoor coil temp.(T2) sensor,
f Outdoor coil temp.(T3) sensor,
f Outdoor ambient temp.(T4) sensor,
f Compressor discharge temp.(T5) sensor.
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