Bosch Climate 5000 Series Service Manual page 71

Service Manual
IPM continuity check
WARNING: ELECTRICAL HAZARD
Electricity remains in capacitors even when the power
supply is off. Ensure the capacitors are fully discharged
before trouble shooting.
Turn off the power, let the large capacity electrolytic capacitors discharge
completely, and dismount the IPM. Use a digital tester to measure the resistance
between P and UVWN; UVW and N.
Digital tester
(+)Red (-)Black
N
U
P
V
W
Table 49
Figure 68
Bosch Thermotechnology Corp. | 04.2020
Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Outdoor Unit | 71
Normal resistance value
(Several M )
Digital tester
(+)Red (-)Black
U
V
N
W
(+)Red
Normal resistance value
(Several M )
Data subject to change