What does Sangle / Shenhua / Smith / Smith / Smith / Triangle brand gas water heater code mean?

1. Sangle

(1) Thermostat:

E0 Temperature probe abnormal

E1 ignition failure or unexpected stall failure

E2 False Fire: Flame detected before ignition

The E3 thermostat is disconnected

E4 condensate discharge blockage (condensing models)

E5 Abnormal wind pressure

E6 Water temperature over 85°C protection

The E8 solenoid valve is abnormal

EN Overtiming time protection

(2) Zero cold water thermostat:

The E0 temperature sensor is abnormal

E1 ignition failed

E2 unexpected stall failure

The E3 overtemperature thermostat is disconnected

E4 effluent ≥ 85°C dry burning failure

E5 Abnormal wind pressure failure

E6 residual fire, pseudo-fire failure

EC communication failure

Eh return failure

EF Freeze Alert or Freeze Failure Fault

EN Overtiming time protection

2. Shenhua

E0 temperature sensor, or flow sensor failure; Check for loose wiring, temperature sensors, and flow sensors.

E1 ignition failure; Check the positive and negative terminals of the gas, controller grounding wire, controller and proportional valve terminals.

E2 accidentally stalled; Check that the flame feedback wire wiring on the controller is loose.

E3 Water temperature ≥ 75°C protection; The temperature sensor needs to be checked;

E4 wind block/wind pressure; It is necessary to check that the air duct is blocked, the wind pressure switch wire is loose, and the wind pressure switch is required;

E5 solenoid valve failure; It is necessary to check the loose wiring of the solenoid valve and the solenoid valve;

E6 residual fire failure, there is still a flame after turning off the water or shutting down; The solenoid valve is not released after being closed;

III. Smith

(1) E1 ignition fails or stalls halfway

1. When the induced current of flame detection (feedback electrode) is weak, the program determines that the burner is not fireless. It is necessary to check whether the feedback electrode is in the high temperature area of the flame, adjust the height of the feedback electrode, and check that the wiring of the feedback electrode is loose;

2. Observe whether the combined electrode is discharged from the window. It is necessary to check the discharge distance of the combined electrode, and the pulse generator wiring is loose.

(2) E2 wind pressure is abnormal or fan failure

1. When the flue is blocked or the flue resistance is too large, it causes the wind pressure switch to operate. It is necessary to check whether the sampling tube connected to the wind pressure switch is reliably connected, whether there is air leakage, whether there is any wrong insertion, etc.;

2. When the fan fails, the speed is too low or stopped. It is necessary to check whether the connection line between the fan and the main control board is plugged in reliably, whether the fan is damaged, whether the fan is stuck, etc.

(3) E3 anti-dry burning device action

1. When the thermostat action is disconnected, the program is interrupted. It is necessary to check whether the connecting cable is plugged in reliably and whether the thermostat is faulty; If the thermostat is operated due to dry burning, it can be reset by itself.

2. When the thermal fuse component is disconnected, the program is interrupted. At this time, it can be checked whether the connecting wire is plugged in reliably and whether the hot fuse assembly is damaged due to dry burning.

(4) E4 temperature probe failure

Water inlet and outlet temperature head break or short circuit. It is necessary to check whether the connecting cable is plugged in reliably and whether the temperature sensor is damaged.

(5) E5 Ultra-temperature failure

When the outlet water temperature exceeds 93°C for 10 consecutive seconds, the program is interrupted. It is necessary to check whether the outlet water temperature head is damaged, whether the combustion is abnormal, whether the water flow sensor is abnormal, etc.

(6) E6 pseudo-fire failure

1. If the time interval between opening and closing the water valve during operation is less than 2 seconds, the flame detection may determine that there is a residual flame, and only the time interval between the opening and closing water needs to be extended to eliminate it.

2. If the whole machine cannot be started, the operation board fails, the display jumps are irregular, etc., it is necessary to check whether the main control board is damaged; Check whether the relevant electrical parts are damaged before considering replacing the main control board

IV. Smith

(1) E1 ignition failure; It is necessary to check the gas, or the air in the pipe ignites several times;

(2) E2 accidental flameout; Gas inspection is required;

(3) E3 control valve failure; It is necessary to check the loose terminal block, control valve, close the gas valve, increase the water flow and lower the set temperature;

(4) E4 wind pressure abnormality; It is necessary to check the loose terminal block, control valve, wind pressure switch, and clean up the smoke pipe blockage; If the outdoor wind is suspended;

(5) E5 control valve failure;

(6) E6 over-temperature protection; Check that the temperature sensor connector is loose and the flame sensor needle is inspected;

(7) E7 wind pressure is abnormal;

5. Mrs. Wang Electric Company - Triangle Brand

(1) The E1 point does not catch fire, or the E2 fires and turns off; The liquefied gas gas pressure is too high or too low;

1. The pressure after the liquefied gas pressure reducing valve should be adjusted to about 2800pa. In winter, the temperature is low, the gasification rate of liquefied gas is slow, and the gas supply is insufficient. Adjust the liquefied gas pressure reducing valve or replace the pressure reducing valve;

2. When the liquefied gas cylinder is used, it is inverted, and the residual liquid is poured into the gas valve body of the water heater, resulting in abnormal operation of the gas valve. The gas valve needs to be cleaned, and the gas valve body must be replaced if the rubber membrane in the gas valve body is deformed or damaged.

3. The rated gas pressure of natural gas should be 2000pa, it is not easy to ignite when the pressure is small, and the secondary pressure of small fire should be adjusted;

4. The fan is stuck or does not rotate; Replacement required;

5. The solenoid valve is not opened, or the coil is broken. Measure the solenoid valve coil resistance at about 100W and the voltage at about DC20V; The voltage supplied to the solenoid valve by the computer board is too small to open the valve.

6. Check whether the 24V output voltage of the transformer is normal. Replace the computer board or transformer.

7. The proportional valve coil is damaged; Proportional valve voltage: about 10V for small fire, about 15V for medium fire, and about 20V for large fire.

8. The pulse igniter is damaged and does not ignite, showing E1; The pulse igniter needs to be replaced;

(2) E3 AC fan failure

1. The AC fan terminal is loose, and the fan does not rotate.

2. The starting capacitor of the fan is damaged. The starting capacitance of the fan should be about 0.6μF, which can be replaced by a 1.0μF capacitor.

3. The computer board is damaged

(3) E4 effluent temperature above 8585 °C overheating protection

1. The temperature sensor is faulty, and the resistance drift temperature of the thermistor temperature sensor is abnormal. Thermistor: the resistance value is about 10KW at 25 °C, and the higher the resistance value is at 10 °C-80 °C, the lower the R value, and the R value is about 15KW-1.4KW.

2. When the heat exchanger and thermostat are in poor contact; At this time, the thermostat loses its protection function, the water flow is small, and the fire power is in a state of fire, and the water temperature rises to 85 ° C.

(4) E5 temperature sensor failure; Temperature sensor wiring is loose, short-circuited, or open. The temperature sensor needs to be replaced;

(5) E6 water temperature overheating dry burning protection

1. When the hot water temperature exceeds 75±5 °C, the thermostat is broken; If the machine thermostat frequently operates to report E6 failure due to poor combustion, the thermostat can be replaced with an 85°C thermostat;

2. There are 3-4 overtemperature fuses in the wiring harness wound on the water tank, which will fuse at about 141 °C; When the overtemperature fuse is blown, the wiring harness or computer board needs to be replaced;

3. Check whether the 7824 stabilizer block of the computer board is burned out;

(6) E7 communication failure; A new battery needs to be replaced;

(7) E8 code pairing failed;

1. Strong signal interference with the circuit board from the outside may cause a large offset in the transmitting frequency, resulting in inconsistency with the receiving frequency; Need to power off and restart;

2. The connection cable between the wireless receiving module and the computer board is loose; It is necessary to open the face shell and take out the computer board, find the terminal between the wireless receiving module and the computer board board, plug and unplug it several times, and then power it back on.

(8) E9 When replacing the computer board, dial the test mode code 6 or 7 by mistake, and the machine reports E9 failure after powering on. In the normal dialing state, the test mode dialing code can only be dialed down after normal combustion; After the adjustment is complete, reset the test mode dial.

END!