Troubleshooting and maintenance of car heater
The car heater is a small combustion cycle heating system that operates independently of the engine. It heats the coolant in the water tank by burning the fuel in the car to heat the car and the engine without starting the car. This system is widely used in cars, buses, engineering vehicles, yachts and other fields.
The car heater extracts a small amount of fuel from the fuel tank to the parking heater combustion chamber, which is then ignited by the igniter to obtain an open flame; the combustion chamber is connected to the water tank coolant pipeline, and the heated coolant circulates in the car; it flows through the warm air After the radiator, the cabin is heated, and the engine is also warmed up at the same time. The whole process does not need to start the engine. Generally speaking, heating for 20 minutes can make the car warm, the engine is fully warmed up, and the ice and snow on the windows will also be melted. Depending on the size of the heater, the amount of fuel required for heating once varies from 0.2 to 0.3 liters.
Car heater ignition plug is a component that often has problems with heaters. Now let’s sort out the troubleshooting methods of parking heater ignition plug.
1, the ignition plug is not connected properly
Remedy: Check whether the plug-in is connected correctly and whether the lead wire is loose, if so, please re-plug it
2, the lead wire of the ignition plug is short-circuited or open
Remedy: Use a multimeter to check whether the lead wire of the ignition plug is short-circuited or open, if so, please repair or replace it
3, the ignition plug is damaged
Exclusion method: Use a multimeter to check the resistance value between the two leads of the ignition plug, the resistance value should be between 0.6-1.2 ohms, if not in this range, please replace
Daily maintenance of parking heater tips:
1. Check the tightness of the water pipe, whether there are bends and interference parts.
2, check the tightness of the fuel line to see if there is oil leakage.
3. Check whether the circuit is damaged, whether the connector is loose, and whether the fixing is reliable.
4. Check whether the pump motor is running normally and whether there is abnormal noise.
5. Check whether the glow plug or ignition generator has carbon deposits.
6. Check the combustion-supporting air and exhaust pipes, and the smoke exhaust is smooth and not blocked.
7. Whether the radiator and defroster fan have abnormal noise or card issue.
8. Ensure that the oil tank, oil pipe and oil filter solenoid valve are clean to prevent dirt from blocking the oil circuit