SECTION 4. DISASSEMBLY AND SERVICE
b. INSPECTION
Main winding/
Secondary
winding/DC winding
If no DC voltage is output, check whether DC
overcurrent has tripped, and whether DC receptacle is
damaged, if so, replace the receptacle.
If no AC voltage is output, check whether AC
receptacle is damaged, if so, replace the receptacle.
Check whehther there’s voltage between motor
stator windings, if there is, replace the inverter; if not,
replace the stator.
Table of resistance between windings rated 230 V
2KW:
Wire
color
Resistance
Main winding
Brown
4.11-4.55
Ω
Secondary
winding
Orange
0.38-0.42
Ω
DC winding
Blue
0.19-0.21
Ω
Table of resistance between windings rated
120V
2KW
Wire
color
Resistance
Main winding
Brown
1.18-1.30
Ω
Secondary
winding
Orange
0.38-0.42
Ω
DC winding
Blue
0.19-0.21
Ω
If resistance is zero or infinite, replace the stator.
Remove the stator from the motor.
Check whether insulation of stator
windings’enameled wires and leads’ insulation are
obviously damage, if so, replace the stator.
Note: Be careful not to damage insulation of
windings’ enameled wires and leads’ insulationl when
removing and installing the stator.
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