Analysis and treatment of relatively common problems of parking heaters
With the advent of winter, the weather is getting colder and colder, and people's demand for parking heaters has gradually increased. Of course, there may be some common problems during the installation and use process, now we will analyze and answer them.
1. Nothing happens after booting. No power input. Measure whether the heater power supply is normal according to the circuit diagram, and check the vehicle insurance and line power supply. Check the power supply, check the power-on signal wire, and check the ground wire. Thermocouple problem: Phenomenon: Measure both ends of the thermocouple, and its resistance value is 0 ohm. Reason: The two outgoing wires of the thermocouple are connected to the shell, causing the ignition sensor to be grounded.
2. Indicator problem. The indicator light is always on. Maybe the control circuit is broken, or the ground wire is not connected. The start indicator flashing can judge the fault location according to the flashing frequency of the heater indicator light and compare the fault flash code table to repair or replace the corresponding parts.
3. The heater emits black smoke and the heater deposits carbon to clean up the carbon deposit. The fuel injector or filter or fuel pipe is blocked, clean or replace the corresponding parts. If the oil pump pressure becomes smaller, adjust the oil pressure back, and replace the oil pump if necessary.
4. The heater works normally, but fires repeatedly. Reason: When the hot spot is heated, the internal furnace wire will be connected to the shell, causing the ignition sensor to short circuit. The controller considers that it is extinguishing the fire and the ignition sensor needs to be replaced.