T-K3 Service Manual
Ver. 1.05
15
CONFIDENTIAL
10-3. Fan motor
T-K3 Part #
#104
Takagi Part #
EKK25
Checkpoint
G
Function
Failure events
Effects on the T-K3
if fan motor fails
Error codes when
the fan motor fails.
Diagnostic
Red-Blue
Yellow-Blue
Orange-Blue
White-Blue
Color/Number of
wires
To provide combustion air into the burner chamber and to exhaust flue gas.
1. Visual inspection: connection/breakage of wires or dust (causing electrical
shortage)
2. Voltage check: proper range of voltages shown below.
1. Fan speed failure, causing abnormal sounds with or without combustion in the
operation.
2. Unexpected working caused by the connectors of the fan motor getting wet.
3. Drops out from the bottom of the combustion chamber
1. T-K3 does not function properly
2. Failure to ignite or abnormal ignition
3. Unstable combustion conditions
DC 110~160V (Input)
DC 13~17V (Input)
611
DC 2.0~6.5V (Input)
Verify the fan motor speed using the Diagnostics Mode of the
TM-RE10 temperature remote controller. See Section 12-1 for
details.
A S
A HI
6-1/2"
(165.
5mm)
3 - 3 / 4 "( 9 5 .7 5 m m )
F r e e z e p r o t e c t i o n t h e r m o s t a t
F a n d a m p e r
