Instructions condensing Air heaters type XR version XR-GB-4001-a
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L-25 Sensor
Sensor heat exchanger fault 4
L-26 Sensor
Flue sensor fault 4
L-27, 28,
29, 30,
Internal
error
Internal error 13
L-32 Sensor
Sensor heat exchanger fault 4
L-33, 34,
35, 36,
37, 38
Internal
error
Internal error 13
Temperately errors, the will disappear when the cause is taken away
E00, to
Internal
Internal error 13
E-05 Overheat Overheat heat exchanger sensor 3
E-06 to
13
Internal
error
Internal error 13
E-15 to
Internal
Internal error 13
E-23, 24 Flue sensor Flue sensor not detected
E-34 Reset
Too many reset actions in a short time 9
E-36 Overheat Overheat heat exchanger sensor 3
E-38, 39 Heat
exchanger
Sensor heat exchanger not detected 4
E-48, 48 Heat
exchanger
Heat exchanger sensor shortened 4
Case 1: Within 5 sec flame, then flame failure.
• The flame is not detected. Check the ignition cable and electrode. (cable resistance 1k
Ohm).
• The electrical earth of the heater is poor,
• The print board is defective.
Case 2:
• There is not enough gas pressure.
• The mixture of gas/air is poor, adjust the gas valve
• The gas valve does not open, check during ignition for 230V on the valve.
• Check whether the ignition electrode sparks, replace cable, electrode
Case 3: Heat exchanger too hot
• Check whether the system fan blows enough air.
• Check the setting of the gas valve, the heater may me overloaded.
Case 4: Temperature sensor on heat exchanger error.
• The sensor has internally 2 sensors. These differ too much. Measure the resistance
from each sensor, the resistance should be 20K at 25° en 25K at 20°. If the measured
values differ too much, replace sensor.
• L-25 is heat exchanger sensor, L-26 is flue sensor
Case 5: Too many flame failures while burning
• The setting of the gas valve is not ok, adjust the gas valve
• The flue outlet is blocked
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