Filter
Top Products
- 111 -
State of Machine
Cause Check point Content of confirmation
1) Connected mistake The fan controller connection is confirmed.
Troubleshooting
6) The control printing wiring board is
defective.
The blinking of LED01 is confirmed. At the time of turning on light (always)
(There is a possibility of the thermistor short-circuit.)
The CN01 connector is removed, and measures
resistance. When the resistance is 1 kilo-ohm or
less, repair the control printing board due to the
thermistor short-circuit breakdown.
In case of thermistor is correct, the control printing
board is defective and exchange.
At the time of turning off light
(There is a possibility of the thermistor open
breakdown.)
The CN01 connector is removed, and measures
resistance. When the resistance is 25 kilo-ohm or
more, repair the control printing board due to the
thermistor open breakdown.
In case of thermistor is correct, the control printing
board is defective and exchange.
After checking item 1)-5), when the power
supply is turned on, the blinking of LED01
is confirmed.
3) The control printing wiring board is
defective.
Item 1) is checked, again.After checking item 1), there is a
possibility of a defective printed circuit
board if a normal drive is not done.
After checking item 1), if there is no problem,
the control printing board is defective and exchange.
4. The fan never
becomes full load
drive. (In heating)
CN04- the wiring for full load input
(CN04 input is AC198-264V in heating.)
NF-SCRM-TB OUT
CNU, CNV, CNW-SCRM
(The connection is noted.)
TB IN-NF wiring
TB IN-T01-CN02
It is confirmed that wiring is correctly connected.
The wiring mistake is corrected.
At the time of blinking
The item 2), 3) are confirmed again, and there is
no connection mistake, the control printing board
is defective and exchange.
The wiring mistake is corrected. The unit side connection is confirmed. Position of the wiring for full load input
(In heating)
2) The thyristor module (SCRM) is defective. The content of P14 is checked. (SCRM) The content of P14 is judgment. (SCRM) Replace SCRM when abnormality is found.