Takagi T-K3 - Operating Safety Instructions

T-K3 Service Manual
Ver. 1.05
36
CONFI DENTIAL
5 Disconnected/dama
g
ed O.H.C.F.
(
Refer to section 10-13
)
C2
Visual inspection:connection/breakage of wires.
Normal: 1
Ω
or less between blue & blue
6 Check if hi-limit switch is properly functioning.
7C1
Normal: 1
Ω
or less between blue & blu
e
Checkpoint
1 Outlet thermistor fault
(
Refer to section 10-11
)
Check voltage/resistance between black & black (#12).
Refer to Section 8 for proper range of values.
Checkpoint
1 Inlet thermistor fault
(
Refer to section 10-11
)
Check voltage/resistance between black & black (#42).
Refer to Section 8 for proper range of values.
Checkpoint
1 Mixin
g
thermistor fault
(
Refer to section 10-11
)
Check voltage/resistance between black & black (#113).
Refer to Section 8 for proper range of values.
Checkpoint
1 AFR rod fault (Refer to section 10-6) I
Visual inspection:connection/breakage of wires and/ or soot buildup.
391
331
321
Visual inspection: connection/breakage of wires.
121
Er ror cod e is
shown after
three failed
attempts at
ignition
Error Code Malfunction description Cancellation method
Disconnected/dama
g
ed hi-limit switch.
(Refer to section 10-12)
Disconnected/short-circuited outlet
thermistor
Turn off the power or water
supply
Dia
g
nosis
E2
Visual inspection: connection/breakage of wires and/or debris
on thermistor.
311
Error Code Malfunction description Cancellation method
Disconnected/short-circuited inlet thermistor
Turn off the power or water
supply
Diagnosis
E3
Visual inspection: connection/breakage of wires and/or debris
on thermistor.
Error Code Malfunction description Cancellation method
Disconnected/short-circuited mixing
thermistor
Turn off the power or water
su
pp
l
y
Diagnosis
E1
Visual inspection: connection/breakage of wires and/or debris
on thermistor.
Error Code Malfunction description Cancellation method
Disconnected AFR rod
Turn off the power or water
supply
Diagnosis
Error Code Malfunction description Cancellation method