Motor Will Not Run; Blower Motor Will Not Run; Quick Check - Trane *UH2B060A9V3VA Service Facts

Service Facts
Q
These service procedures will work on ECM-2
control board and their 16 Wire Low Voltage Control Cable.
1. J 24 V
umper olt
L V T
ow oltage erminal board
D
oes motor run
NO: Go to step #2.
YES: Motor runs,
check Comfort Control
and Comfort Control wire.
2. U 16
nplug wire low voltage harness from the interface board
J 24 V
umper olts
D
oes the motor run
NO: Go to step #3.
YES: Replace the
variable speed
interface board
on the furnace.
12
C
uick heck
ECM -2
B M
lower
A.C. "R" T
erminal to
.
?
Jumper
A.C. #12, #15
to pins
?
24 V.A.C.
M W
otor ill
TM

QUICK CHECK

W N
otor ill ot
TM
motors and their motor
"G"
terminal on the
and common pins
To Pin #12
To Pin #15
To Pin #1 & #3
N R
ot un
R
un
#1
and
.
#3.
X343070P08