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Instruction manual SGE 92
F19 (blocking error)
Power supply voltage is
too low.
There is not enough
supply voltage.
1. Check that there is power to the controller
2. The measured voltage must be 230 V
AC (-15%, +10%)
See the electrical diagram (17 "
Appendices").
If the error persists, consult your installation engineer
C02 (lock out error)
Error message from the
controller.
Incorrect reference
voltage from the AD
converter.
1. Reset controller.
2. Check that the frequency of the power supply is
compliant (3.4.2 "
General and electrical specifications"). If not,
contact your installation engineer
3. If the frequency is correct but the error persists, replace the
controller.
To replace the necessary parts, you must contact your installation
engineer
Internal error message
from the controller.
• EEPROM read
error
• 50 Hz error
• Internal
communication
error
Internal error message
from the controller.
• Gas valve relay
error
• Safety relay error
• Ignition relay error
• RAM error
• EEPROM error
• EEPROM contents
do not match the
software version
• Processor software
error
C03 (blocking error)
Reset error
Too many resets in too
short a period
Wait for the error to disappear (maximum 1 hour). If the error does
not disappear, replace the water heater controller.
To replace the necessary parts, you must contact your installation
engineer
Code + description Cause Measure Remark