KNF Yamato RE212-G Manual De Instrucciones página 162

8. TROUBLESHOOTING
Reading Error Codes
This unit has a self-diagnostic function built into the CPU board and a separate safety function,
independent of the CPU board. The table below shows possible causes and measures to take when a
safety function is performed.
[Error Codes]
When an operational error or malfunction occurs, error code and temperature reading are alternately
displayed on the control panel, and operation stops. When an error occurs, confirm the error code and
turn OFF (○) the Power switch immediately.
Display code
Other warnings
Display alert
Temperature reading
flashes
(only in operation)
When independent overheat prevention device is activated.
Display alert
Lamps on the control
panel went out
Description
Temperature sensor
failure
(E01)
Temperature upper
limit error
(E06)
EEPROM failure
(E15)
Description
Overshoot alert
Description
Independent overheat
prevention
27
Possible causes and measures
 Controller failure
 Defective temperature sensor (interrupted or
short circuited)
 Temperature out of specification range.
Contact original dealer of purchase for
assistance.
 When temperature reading rises beyond the
limits specified below, operation will be
terminated.
BM312-G: approx. 105 °C
BO312-G: approx. 220 °C
 Turn OFF (○) power supply and wait until the
liquid temperature comes below 60 °C, and
restart operation.
If unit does not reset, contact original dealer of
purchase
 Error in a storage element EEPROM on the
controller board
 Turn OFF (○) power and restart unit. If unit does
not reset, contact original dealer of purchase
Possible causes and measures
 When temperature reading goes over "set
temperature + alert setting value (°C)", the
readout begins flashing to alert an overshoot.
(Operation continues)
Contact original dealer of purchase if
temperature continues to significantly decrease
after alert occurs.
Possible causes and measures
 Independent overheat prevention device shuts
off power supply to the controller when bath
temperature has risen beyond the device
activation temperature (fixed).
 See "Independent Overheat Prevention Device
Reset" (P.21) for procedure for resetting the
device. If unit does not reset, contact original
dealer of purchase
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