Simple Solution to Burner Failure

Simple Solution to Burner Failure
1. Conditions required for repairing the burner
①  Intermediate or above electrician level, at least familiar with mechanical and electrical equipment. Modern burners have a high degree of automation, and if there is a lack of sufficient electrician operation ability, the electrical part of the burner will not be able to start inspection, but only limited to general cleaning and disassembly.
②  In order to simplify the understanding of the burner, the premise is that the former has its own capabilities - the burner is just a burner. Compared to ZIPPO's gasoline lighter, the fully automatic burner only has an electronic control system.
The burner is simply divided into three parts:
Control section,
Combustion part,
Components.
If you lack sufficient professional knowledge, you don't have to adhere to various classification methods, just based on your own understanding of classification. The main purpose of self classification is actually to simplify maintenance thinking. (If you do not meet the conditions described in clause 1, please do not refer to this clause.)
③  If possible, it is best to make an appointment with someone with considerable professional experience before self maintenance and provide telephone support if necessary.
2: Necessary tools for repairing burners
①  Electric tool: a multimeter. If you don't have the ability to maintain weak electricity, a multimeter worth 10 yuan is enough.
②  Mechanical tools: PH6 cross and slotted screwdrivers, universal fixing screws for disassembly and assembly;
③  Mechanical tool: PH2 screwdriver 1;
④  Mechanical tool: No. 12 adjustable wrench 1. Remove and install universal fixing nut or bolt.
⑤  Mechanical tools: A set of hexagonal wrenches (commonly used in 2, 3, 4, 5, 6, 14), mainly used for disassembling fixed screws or bolts of oil pumps and some main bodies.
3. In the absence of burner maintenance experience or even common sense understanding, it is recommended to use troubleshooting methods. That is to say, under the premise of defining the subject, one by one, clarify the same, and exclude the same.
4: Clean the main components of the burner
①  Program controller, also known as combustion controller, or simply controller, program controller. Note that not all burner controllers are program controllers, and a few burner controllers are applied together with sequential controllers.
②  Ignition transformer, also known as igniter, commonly known as high-voltage bag.
③  Unable to estimate the frequency of damage to oil pumps and moving components, such as fuel quality exceeding the range of use. In recent years, the frequency of oil pump damage has been relatively high.
④  The nozzle is flushed with high-pressure fuel for a long time, approaching consumables. Its lifespan is also affected by fuel quality.
⑤  Photocell, including a part of a flame monitoring element made of photoresist. The flame monitor commonly referred to as an electric eye will also be referred to as a universal flame monitor. For other projects not listed, please refer to the professional knowledge: burner accessories and related content.
5: Use the elimination method to repair the fuel burner, following the principle of simplicity to difficulty and screening item by item. If you do not have sufficient experience, do not go from difficulty to ease.
①  Visually, there is no difference in the appearance of the entire machine.
②  Power supply: It is very important to confirm the connection between the power supply of the entire machine and the burner controller. Firstly, define the overall power supply, and then confirm that the controller power supply is connected properly when the overall power supply is connected. When the power supply of the entire machine is connected normally and the controller has no power supply voltage, personnel with electrician operation ability should inspect the circuit. If the power supply is normal, this step can be omitted, for example, the burner can start normally, only if the combustion is interrupted abnormally. If a burner malfunction indicates that the entire machine is not operating, it must be checked.
③  Check the pipeline from the fuel tank to the oil pump under normal fuel supply pressure. Firstly, visually observe the fuel reserve status of the fuel tank, and then loosen the connection between the fuel pipe and the oil pump to see if there is any fuel flowing out... (Poor fuel flow may cause smoke and intermittent burner shutdown, etc.). The following requirements require a certain level of electrical operation ability, including experience in mechanical and electrical equipment maintenance. When the current three points are clearly defined as normal, the fault state of the burner mainly occurs after the burner motor is started: (1) not ignited, (2) shortly after ignition, (3) irregular interruption during combustion, (4) smoke: of course, it also includes the power supply, fuel, and the entire machine not operating under normal circumstances.
④ This phenomenon occurs when the power supply and controller of the entire machine are connected normally. After resetting the program controller, there was still no action and most of it was damaged by important components. (1) Use a screwdriver to rotate the letter slot on the motor rotor shaft to eliminate mechanical faults in the motor. (2) Measure the motor coil. If it is a single-phase motor, check the starting capacitance. For a three-phase motor, check the power relay and thermal relay. (3) Connect the motor power supply separately, and observe that all of the above are normal. The motor fault is resolved. (4) The measurement of photocells can generally be determined using a multimeter, which only measures the on and off of their light and light states, without considering their accurate resistance values. Generally speaking, if the entire machine does not move, the photocell can only cause this phenomenon under normal operation. Measure the ignition transformer, connect the igniters separately, and visually observe the actual ignition position (the burner needs to be removed). The above checks are all normal, most of which are program controller failures. The controller is more complex and there is no simple method to determine. If the weak current maintenance capability is not available, the controller can only be replaced for testing.
⑤ Do not start the burner motor. Failure to turn off the ignition switch in a short period of time is more likely due to ignition faults, including minor damage to the firearm and incorrect ignition position, such as deviation in the position of the flint or electrode leakage. After startup, it briefly shuts down after combustion, much like a photocell malfunction, including photocell photosensitivity imbalance or lack of conduction after sightseeing. In the above phenomenon, the possibility of controller output failure cannot be ruled out. For example, it is possible to check whether the electrical energy is better during the operation of the burner.
⑥  Smoking while the moving parts are in good condition, adjust the oil pressure and throttle angle appropriately. Note: If unsure, do not adjust the pressure and angle at a large angle. Check the exhaust system of the combustion chamber, chimney, etc., and visually inspect for oil stains. Under high temperature conditions, the volatilization of oil scale is one of the important reasons for the generation of black smoke. If the above two steps are invalid, please perform the following actions:
Check filters, including external filters, oil pump filters (oil pumps), nozzle filters, etc. Check the oil pump pressure and adjust it appropriately. If the pressure is below 1mpa, most oil pumps need to be replaced. If necessary, disassemble the burner and observe the fuel injection status. The pressure adjustment of the oil pump is normal, and the nozzle can be used more, but it is recommended to replace the nozzle once a year - even if the nozzle wear does not affect use, the combustion efficiency will decrease with the degree of wear. If no fault source is found after the above investigation is completed, the applicant should invite personnel with professional experience to recheck the air combustion rate. The burner emits smoke, which is simple and can be solved by throttling the oil pressure. But in fact, it involves the core combustion technology of the burner, so it is quite complex, and some burner exhaust faults cannot be solved by professional personnel, and can only be solved by replacing components.
There are many objective factors involved in abnormal interruptions, and a comprehensive analysis of the working environment is needed.