TROUBLESHOOTING MOTOR
To determine if the motor is in good operating condition, compare measured motor resistance at the motor
terminals to the values shown below.
HIGH SPEED (1750) MEDIUM SPEED (1650) LOW SPEED (1450)
Applicable
Air Curtain
Series
Mars Part # Manufacturer Part #
Brand
Motor Rating
HP
Voltage
Phase
Black Motor Wire & White
Motor Wire
-
-
03-001
7190-1682
Fasco
Nema 1
1/6
115
1
11.5
-
-
03-002
7190-1903
Fasco
Nema 1
1/6
115
1
8.4
-
-
03-003
7190-1825
Fasco
Nema 1
1/6
230
1
64
-
-
03-004
7190-1904
Fasco
Nema 1
1/6
230
1
44.6
-
-
Applicable
Air Curtain
Series
Mars Part # Manufacturer Part #
Brand
Motor Rating
HP
Voltage
Phase
White Motor Wire (T1)
&
Black Motor Wire (T3)
White Motor Wire (T1)
&
Black Motor Wire (T5)
White Motor Wire (T1)
&
Black Motor Wire (T2)
03-010
34G928X169
Baldor
Washdown (IP54)
1/2
115
1
1.2
-
-
03-010
34G928X169
Baldor
Washdown (IP54)
1/2
208/230
1
4.6
-
-
03-005
7124-1175
Genteq
Nema 1
1/2
115
1
2.6
3.8
5.2
03-006
7124-1560
Genteq
Nema 1
1/2
208/230
1
9.9
15.9
22.5
03-007
48S17T439
Marathon
Nema 1
1/2
277
1
7.7
-
-
03-005
K055PWM1736C13H
Nidec
Nema 1
1/2
115
1
2.1
3.7
5.2
03-005
K055PWM1736C13H
US
Nema 1
1/2
115
1
5.3
3.7
5.4
03-006
US
Nema 1
1/2
208/230
1
8.7
18.2
24.2
Applicable
Air Curtain
Series
Mars Part # Manufacturer Part #
Brand
Motor Rating
HP
Voltage
Phase
White Motor Wire (T1)
&
Black Motor Wire (T2)
White Motor Wire (T1)
&
Black Motor Wire (T3)
-
03-021
35T276R025G1
Baldor
Washdown (IP54)
1
115
1
0.7
-
-
03-015-Baldor
35M316S174
Baldor
Nema 1
1
115
1
0.6
-
-
03-015-Baldor
35M316S174
Baldor
Nema 1
1
208/230
1
2.2
-
-
03-021
35T276R025G1
Baldor
Washdown (IP54)
1
208/230
1
2.8
-
-
03-014
7124-0985
Genteq
Nema 1
1
115
1
1.6
2.4
-
03-015
7124-1096
Genteq
Nema 1
1
208/230
1
6.5
9.2
-
03-015
-
Nidec
Nema 1
1
208/230
1
4.3
6.5
-
03-014
K55BWJZB-2362
US
Nema 1
1
115
1
1
2.1
-
03-015
-
US
Nema 1
1
208/230
1
3.2
6.3
-
Black Motor Wire (L1)
&
Red Motor Wire (L2)
Black Motor Wire (L1)
&
White Motor Wire (L3)
Red Motor Wire (L2)
&
White Motor Wire (L3)
03-008
P55YYDHB-1527
US
Nema 1
1/2
208-230
3
16.1
16.1
16.1
03-008
P55YYDHB-1527
US
Nema 1
1/2
460
3
63.6
63.6
63.6
03-009
48T17T135
Marathon
Nema 1
1/2
575
3
136
136
136
03-017
56T17T5541
Marathon
Nema 1
1
208-230
3
4.3
4.3
4.3
03-017
56T17T5541
Marathon
Nema 1
1
460
3
16.5
16.5
16.5
03-018
56T17T5544
Marathon
Nema 1
1
575
3
26.6
26.6
26.6
03-022
35N127S902
Baldor
Washdown (IP54)
1
208-230
3
5.1
5.1
5.1
03-022
35N127S902
Baldor
Washdown (IP54)
1
460
3
19.8
19.8
19.8
03-026
165716
Century
Nema 1
3
208-230
3
1.5
1.5
1.5
03-026
165716
Century
Nema 1
3
460
3
5.7
5.7
5.7
03-028
35E92Y26
Baldor
Nema 1
3
575
3
9.2
9.2
9.2
03-110
36H110-2211G1
Baldor
Nema 1
1,2,3
208-230
3
3.5
3.5
3.5
03-110
36H110-2211G1
Baldor
Nema 1
1,2,3
460
3
13.5
13.5
13.5
03-055
37F932W828G1
Baldor
Nema 1
5
230
3
0.7
0.7
0.7
03-055
37F932W828G1
Baldor
Nema 1
5
460
3
2.4
2.4
2.4
03-046
37F909X889G1
Baldor
Nema 1
7
230
3
0.6
0.6
0.6
03-046
37F909X889G1
Baldor
Nema 1
7
460
3
1.6
1.6
1.6
03-033
U639A - 215TTFC6027 Marathon
Nema 1
10
208-230
3
0.4
0.4
0.4
03-033
U639A - 215TTFC6027 Marathon
Nema 1
10
460
3
1.2
1.2
1.2
03-074
GT1128A 170118.60
Marathon
Nema 1
25
575
3
0.5
0.5
0.5
BD
HV2, NH2,
PH12
EP2
WMI
WMH
STD2, N2,
PH10, QP10
Applicable
Air Curtain
Series
Mars Part #
HP
Voltage
Brand
Motor Rating
Manufacturer Part #
Phase
LEAD WIRE OHM READINGS
MOTOR WIRES OR TERMINAL (T) OHM READINGS
Single Phase Motors
MARS MOTOR RESTANCE READINGS
Three Phase Motors
LPV2, LPN2
STD2, N2,
PH10, QP10
HV2, NH2,
PH12