Bosch Climate 5000 Series Service Manual page 84

Service Manual
3. IPM continuity check
WARNING: ELECTRICAL HAZARD
Electricity remains in capacitors even when the power
f
supply is off. Ensure the capacitors are fully discharged
before trouble shooting.
Turn off the power, let the large capacity electrolytic capacitors discharge
completely, then 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 50
Figure 88
8 4 |
Normal resistance value
∞
(Several MΩ)
Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)
Digital tester
(+)Red (-)Black
U
V
N
W
(+)Red
Normal resistance value
∞
(Several MΩ)