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13-ERROR CODES AND DESCRIPTION
Error
Code
Error Type
Possible Cause
Troubleshooting
E01
Ignition Fault
No gas connection for
boiler.
1- Check that the gas valve is open.
2-Check if there is gas in installation.
3- Press reset button.
4- If the error is still present (or persists)
after
reset, notify gas safe engineer.
E02
False Flame
Indication
It is triggered if flame is
detected in the burner
while gas valve is closed.
1- Press reset button.
2- If the error is still present (or persists)
after
reset, notify gas safe engineer.
E03
High Limit
Temperature
Protection
It will occur if the
temperature of CH return
and CH supply
exceeds 90 ͦC.
1- Check that water valves of boiler
installation are
open.
2- If the boiler triggers this error in winter
mode,
check that at least 1 radiator is open.
3- Press reset button.
4- If the error is still present (or persists)
after
E05
No Frequency
Feedback from
Fan after 1
Minute
Failure of fan or fan cable
1- Press reset button.
2- If the error is still present (or persists)
after reset, notify gas safe engineer.
E08
Flame Circuit
Failure
The electronic card may be
failed.
1- Press reset button.
2- If the error is still present (or persists)
after reset, notify gas safe engineer.
E09
Valve Feedback
Error
The gas valve may be failed.
1- Press reset button.
2- If the error is still present (or persists)
after reset, notify gas safe engineer.
E12
EEPROM Check
Fail
The electronic card may be
failed.
1- Press reset button.
2- If the error is still present (or persists)
after reset, notify gas safe engineer.
E15
Measurement
Deviation Fault
of Temperature
Sensors
Temperature sensors might be
defective.
1- Press reset button.
2- If the error is still present (or persists)
after reset, notify gas safe engineer.
E16
Error on
Temperature
Sensor for CH
Supply Water
No temperature is detected by
temperature sensor for CH
supply.
1- Press reset button.
2- If the error is still present (or persists)
after reset, notify gas safe engineer.
E17
Error on
Temperature
Sensor for CH
Return Water
No temperature is detected by
temperature sensor for CH
return.
1- Press reset button.
2- If the error is still present (or persists)
after reset, notify gas safe engineer.
E18
Temperature
Sensor Error
The temperature change on
the temperature sensor is too
high (> 30 ͦC)
1- Press reset button.
2- If the error is still present (or persists)
after reset, notify gas safe engineer.
