Protherm Gas Boiler Error Codes
The light indication for the Emerald series is 31-34 kW.
Indication
Error code
Reason for error
Flashing red
Drawing error
Air pressure error: the venturi tube or chimney is clogged, the end of the coaxial chimney is frozen, the fan or the warning switch is broken, 65 ° C overheating sensor circuits (only for boilers with an open combustion chamber).
Blinking 1 time green, 2 times red
NTS error of the heating circuit
Overheating or failure of the sensor NTS (heating circuit)
Blinking 1 time green, 3 times red
NTS error of DHW circuit
Overheating or malfunction of the sensor NTS (DHW circuit)
Blinking 1 time green, 4 times red
Heat exchanger overheating
The water temperature exceeds 92 ° C: the overheating sensor circuit is open, the air plug in the heating system, the pump does not provide the nominal flow rate of the coolant.
Blinking 1 time green, 6 times red
No ignition
The impossibility of ignition: interruptions in gas supply, break (breakdown) in the ignition circuit.
Blinks 1 time green, 7 times red
False combustion
The flame monitoring system failed: gas supply failure in the gas supply system, failure of the ionization sensor, failure of the control board.
Red light
Residual flame on the burner
Gas shut off after 4 sec. After the device is turned off: the gas valve of the boiler is leaking, the control board is malfunctioning.
Red and green at the same time
Circulation error
Low pressure in the heating circuit, malfunction of the pressure sensor (flow), clogging of the pump impeller or return filter, malfunction of the circulation pump.
Green blinks (intensively).
Protection against freezing *
The frost protection mode is active
Blinking green (3 sec Off 0.1 sec on)
Test mode*
Enforced circulation mode
Flashing green (3 sec Off 0.2 sec on)
Standby mode*
The boiler is operational, no combustion
Green light is on
Heating*
Heating mode is on
Error codes for the Diamond series, Ruby
E1 - flue gas leakage error - check whether the ventilation pipe is obstructed, the serviceability of the pressure switch and fan;
E2 - error of the heating sensor - check the correct operation of the temperature sensor of the heating circuit;
E3 - DHW temperature sensor error - check if the water pressure is sufficient, the DHW temperature sensor operability;
E4 - high temperature of the heat exchanger - check the heating cocks, the integrity of the circuit of the overheating sensor;
E6 - fire extinguishing - check the voltage in the network, the gas valve blockage, the serviceability of the ignition system, the absence of electrical disturbances. Isolation in it;
E7, Eb - ignition system error - the system detected a problem in the ignition device, check whether there is carbon or moisture on the electrodes and ionization sensor, gas supply stability, control board malfunction possible;
EP - heating circuit error - check the water pressure in the heating circuit, the serviceability of the pressure sensor, the serviceability of the automatic de-aerator
And the circulation pump. Full absence of indication - the power cord is damaged, the control card or the display is malfunctioning.
Light indication for the Emerald series
Note: To check the error code, open the back cover of the control panel.
ATTENTION!!!
The indicators are located on the front side of the boiler control board. For boilers of the new version - an indication on the front control panel.
Indication of status diodes
Reason for error
Type of situation
Diodes of intensity of a flame
Flashing red
Foreign objects in venturi ventilator tube or chimney, chimney head end freezing, defective fan
Drawing error
The first
Red light
Error in the temperature sensor of the heating circuit
Heat carrier overheating
Second light on
Red light
temperature sensor error
The third
Red light
The airlock in the heating system, the circuit of the overheating sensor is open, the pump is defective.
Overheating of the heat exchanger (temperature exceeds 92 ° C)
The fourth
Red light
Breakdown in gas supply, break (breakdown) of the ignition circuit.
Ignition error
The first and fifth lights are on
Red light
Interruption in gas supply, failure of ionization sensor or control board.
Failure in the flame monitoring system.
The second and fifth lights are on.
Red light
Lack of gas fittings, failure of the control board.
Residual flame on the burner (extinguishes more than 4 seconds after shutdown).
All diodes flash consecutively, with a frequency of 1 times / sec.
Red and green
Low pressure in the pipes, the pressure sensor (duct) is defective, the impeller of the circulation pump is clogged, the pump is faulty.
Violation of circulation.
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Flashing green, with a frequency of 4 times / sec.
The temperature of the coolant is below 5 degrees.
Protection against freezing
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Blinking green (3 sec on, 0.2 off).
Cooling of the heat exchanger.
The circulation pump is switched on.
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Flashing green
No request to turn on the burner.
Waiting in heating mode.
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Green light is on
No.
Heating
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