A.O. Smith Innovo IR 12-160, Инструкция по установке, эксплуатации и обслуживанию

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12.1.2 Displayed errors
Note
For the coding of the connections, refer to the Electrical wiring diagram (see 13.4).
Note
Contact your service and maintenance engineer if the error persists.
Code and description Cause Measure
C02
(lock out error)
Control error
Error message from the
controller
- Incorrect reference voltage from
the AD converter.
- EEPROM read error.
- 50 Hz error.
- Internal communication error.
- Gas control valve relay error.
- Safety relay error.
- Ignition relay error.
- RAM error.
- EEPROM error.
- EEPROM content does not match
the software version.
- Processor software error.
- Ionisation circuit error
- Make sure that the wiring/flame probe
are not damaged. If necessary,
replace the wiring/flame probe.
- Make sure that the flame probe is not
bend. If necessary, replace the flame
probe.
- Reset the controller.
- If the error reappears, make sure that
the frequency of the power supply is
50 Hz (-1, +1 Hz).
- If the frequency is not correct, contact
your service and maintenance
engineer.
- If the frequency is correct and the
error reapers, replace the controller.
C03
(blocking error)
Control error
More then 7 resets detected in a short
period. Wait for the error to disappear (maximal 1
hour).
If the error does not disappear, replace the
controller
C04
(blocking error)
Control error
This error appears when the controller
and/or display is replaced.
Incorrect selection of the water heater.
Turn the water
heater OFF and
ON. When the
error reappears
contact your
supplier.
C05
(blocking error)
Control error
Content EEPROM not correct. Reset the controller.
If the error reappears, contact your supplier.
E01
(blocking error)
Temperature error
The temperature in the tank is above
90ºC. - Tap off water, so the temperature
drops in the water heater.
- Reset the controller.
- Make sure that there is no scale on
the temperature sensor. If necessary,
replace the sensor.
E03
(lock out error)
Temperature error
Temperature difference, between sensor
1 and sensor 2, is more then 10ºC, for
at least 60 seconds. Make sure that the sensor wiring is
connected and not damaged. Reset the
controller.
If necessary replace the sensor and/or
wiring if the error reappears.
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74 Installation, Maintenance and Service part