Marey GA30NG - DIAGNOSTIC ERROR CODES; Error Codes E0-E3; Error Codes E4-E6; Error Codes E7-E9

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The following table includes a list of diagnostic codes that can be displayed as well as recommended
Error Code
Possible Cause
Solu�on
E0
Outlet water temperature sensor
failure
Contact a dealer or qualied service technician
E1
Ignion failure
Check the gas pressure, no gas or gas pressure lower
Press the ON/OFF to Reset;
Contact a qualied service technician
E2
Flame failure(during working)
Check the gas pressure, no gas or gas pressure lower;
Press the ON/OFF to Reset;
Contact a qualied service technician
E3
Dry burning(over temperature)
protecon
Temperature higher than 85℃ has been detected.
Check the water pressure, water pressure too low.
Contact Marey technical support.
E4
Inlet water temperature sensor
failure
Contact Marey technical support.
E5
Fan failure
Contact Marey technical support.
E6
Water sensor overheat protecon
Inlet temperature75℃, check the temperature
sensor;
Outlet temperature85℃,check the temperature
sensor.
E7
Proporonal valve or Solenoid
valve failure
Contact Marey technical support.
E8
Flue pipe outlet blockage
Check the air intake/exhaust ue duct;
Press the ON/OFF to Reset.
E9
False Flame
Press the ON/OFF to Reset;
Contact Marey technical support.