Ignition failure: Under normal conditions, if the burner is started three times in a row and there is no ignition and combustion, it should be judged as an ignition failure, and corresponding inspections are required to eliminate the fault. (The fan runs normally during ignition and the program is correct)

● Ignition failure

Under normal conditions, if the burner is started three times in a row and the burner fails to ignite, it should be judged as an ignition failure, and corresponding inspections are required to eliminate the fault. (The fan runs normally during ignition and the program is correct)

1. Gas source failure. Check whether the pressure of natural gas is normally maintained at 3-5kpa. If it is too high or too low, it will cause misfire. Treatment method: adjust the natural gas pressure regulating valve and set the pressure.

2 Damper failure. Check the size of the damper. When the damper is too large, it is easy to fail to ignite multiple times. The solution is to adjust the damper appropriately, but do not close it completely.

3 Ignition electrode or ignition transformer failure Ignition failure will occur when the ignition transformer does not spark, or when the ignition electrode is too dirty and in the wrong position. Treatment method: Test whether the ignition transformer is igniting, clean the ignition electrode, and adjust the ignition gap to maintain 2-3mm.

4. Gas valve group failure. During normal ignition, the valve group will open in time, and the opening sound can be heard. If it cannot open, a flame will not be established. Solution: Check the valve group coil and adjust the opening of the valve.

5 Ignition controller failure All ignition programs are issued by the controller. The controller is damaged and cannot ignite normally. Solution: Replace the controller.

● Flameout failure If the burner suddenly extinguishes the flame during normal operation and combustion, it is a flameout failure.

1. After the unstable air source causes flame fluctuations, put out the fire and deal with it; adjust the pressure and restart.

2 Flame detector failure: The flame detection probe is grounded during operation, or it cannot detect a normal flame when it is too dirty, causing flameout. Treatment method: adjust the probe position and clean the probe surface. Restart.

3 Circuit failure: The power supply is unstable or lacks phase, causing flameout during the process. Solution: Contact an electrician to check the power supply and wiring.

●The burner does not start. The burner does not start after pressing the start button for a long time.

1 External cascading failure The external temperature or pressure control does not reach the lower starting limit; check the temperature or pressure setting value.

2. The internal chain of the burner does not pass. This will occur when the air pressure is too high or too low, when the air pressure switch is normally closed but not closed, and when the air door mechanism is not in place. Check it step by step.

3. The program controller fault has not been reset. Please reset it again.

4. Fan motor overheat protection, reset the thermal relay.

5. Check whether the start button of the control cabinet is normal.

6. Circuit failure: Check the circuit to see if the start signal is normal and the voltage fuse is normal.