1. Reasons for increased noise of the burner:
1. The shut-off valve in the oil circuit is closed or the oil intake is insufficient, and the oil filter is blocked.
2. The oil inlet temperature is low, the viscosity is too high or the oil inlet temperature of the pump is too high.
3. The oil pump is faulty.
4. The fan motor bearing is damaged.
5. The fan impeller is too dirty. Approach:
① Check whether the valve in the oil pipeline is open, whether the oil filter is working normally, and clean the filter screen of the pump itself. ②Heating or lowering the oil temperature. ③Replace the oil pump. ④Replace the motor or bearing. ⑤Clean the fan impeller.
2. There is a spark in the combustion rod but the reason why it cannot be ignited:
1. The ventilation gap of the cyclone disk is blocked by carbon deposits, and the ventilation is not/good.
2. The oil nozzle is not clean, blocked or worn.
3. The damper setting angle is too small.
4. The distance between the tip/end of the combustion rod and the front edge of the oil nozzle is not appropriate (too protruding or retracted)
5. The solenoid valve of the main oil gun is blocked by debris (small fire oil gun).
6. The oil is too viscous to move easily or the filter system is blocked or the oil valve is not opened, so that the oil pump lacks oil suction and the oil pressure is low.
7. The filter screen of the oil pump itself is blocked.
8. Oil contains more water.
3. It can burn normally, but the typical reason for this kind of malfunction phenomenon is that the flame sensor is dirty. The flame sensor is a light/sensitive resistor. When it is irradiated by light, its own resistance value decreases, showing a low impedance state. When there is no light irradiating, the resistance value rises, showing a high impedance state. The controller in the burner judges whether the combustion process continues according to the resistance value of the flame sensor. If the combustion stops and the flame sensor shows high impedance, the fuel supply is immediately stopped to avoid the accumulation of unburned diesel oil. The flame sensor probe/head is located in the air duct of the burner. Due to black smoke, backfire, air supply dust, etc., its surface is easily dirty and loses its photosensitive function. Check the sensor probe/head and clean its surface with alcohol or detergent if necessary.
1. Reasons for increased noise of the burner:
1. The shut-off valve in the oil circuit is closed or the oil intake is insufficient, and the oil filter is blocked.
2. The oil inlet temperature is low, the viscosity is too high or the oil inlet temperature of the pump is too high.
3. The oil pump is faulty.
4. The fan motor bearing is damaged.
5. The fan impeller is too dirty. Approach:
① Check whether the valve in the oil pipeline is open, whether the oil filter is working normally, and clean the filter screen of the pump itself. ②Heating or lowering the oil temperature. ③Replace the oil pump. ④Replace the motor or bearing. ⑤Clean the fan impeller.
2. There is a spark in the combustion rod but the reason why it cannot be ignited:
1. The ventilation gap of the cyclone disk is blocked by carbon deposits, and the ventilation is not/good.
2. The oil nozzle is not clean, blocked or worn.
3. The damper setting angle is too small.
4. The distance between the tip/end of the combustion rod and the front edge of the oil nozzle is not appropriate (too protruding or retracted)
5. The solenoid valve of the main oil gun is blocked by debris (small fire oil gun).
6. The oil is too viscous to move easily or the filter system is blocked or the oil valve is not opened, so that the oil pump lacks oil suction and the oil pressure is low.
7. The filter screen of the oil pump itself is blocked.
8. Oil contains more water.
3. It can burn normally, but the typical reason for this kind of malfunction phenomenon is that the flame sensor is dirty. The flame sensor is a light/sensitive resistor. When it is irradiated by light, its own resistance value decreases, showing a low impedance state. When there is no light irradiating, the resistance value rises, showing a high impedance state. The controller in the burner judges whether the combustion process continues according to the resistance value of the flame sensor. If the combustion stops and the flame sensor shows high impedance, the fuel supply is immediately stopped to avoid the accumulation of unburned diesel oil. The flame sensor probe/head is located in the air duct of the burner. Due to black smoke, backfire, air supply dust, etc., its surface is easily dirty and loses its photosensitive function. Check the sensor probe/head and clean its surface with alcohol or detergent if necessary.