What are the reasons for the sprinkler air conditioner not heating？

There are several reasons why the sprinkler air conditioner does not heat up:

Possible reasons: The temperature of the coolant is too low; the coolant does not reach the specified amount; the coolant does not circulate smoothly; the heating iron core is blocked, the belt adjustment is not good, the water pump is not working well, the air is mixed in the coolant, and the temperature sensor is not working well; the temperature control pulls Poor cable adjustment; the sprinkler air conditioner not heating,poor air-mixing damper operation.

Inspection and troubleshooting: Check the engine; replenish coolant; coolant is not circulating; clean or replace the heating assembly, adjust the V-belt of the water pump, repair or replace the water pump, exhaust the cooling system, replace the temperature sensor, and adjust the temperature control cable.

What is the method of adding refrigerant to the sprinkler air conditioning system:

The Dongfeng sprinkler is equipped with a branch pipe pressure gauge, and one end of the green hose is connected to the middle of the pressure gauge, and the other end is connected to the vacuum pump, the sprinkler air conditioner not heating and then the vacuuming operation is performed.

Install the refrigerant tank. Install the filling tank to the branch pressure gauge, completely close the valves on the pressure side and high pressure side of the branch pressure gauge, install the refrigerant tank to the green filling hose in the middle of the branch pressure gauge, and turn the handle clockwise until the needle valve is cooling. Drill a hole in the refrigerant tank,the sprinkler air conditioner not heating turn the handle counterclockwise to exit the needle valve, press the air purge valve of the branch air pressure gauge, and release the air until the refrigerant is released from the valve.

Fill the refrigerant from the high pressure side. When the engine is not working, open the high pressure side valve and add the refrigerant until the pressure value of the low pressure gauge is about 0.98MPA. After filling, close the valve.

Check for air leaks and use an electronic leak detector to detect air leaks in the system.

Fill the refrigerant from the low pressure side, close the high pressure side valve, the sprinkler air conditioner not heating start the engine and run the air conditioner, open the branch pressure gauge, and add the specified amount of refrigerant.

The engine compartment of the sprinkler is an important part of the whole sprinkler. Like the "bedroom", regular cleaning of the engine compartment of the sprinkler can ensure the "health" of the engine of the sprinkler. The main cleaning items are dust and oil cleaning: for dust, it is recommended to use a high pressure air gun for cleaning; for oil, the sprinkler air conditioner not heating flannel and brush can be used for simple cleaning.

As spring and winter alternate, many bacteria and viruses also begin to increase. The air conditioning filter element of the sprinkler truck is also the focus of the cleaning project, and it needs to be cleaned and replaced evenly. The cleaning method is mainly to use a high pressure air gun to blow off the sundries and dust on the filter element, and spray an appropriate amount of air conditioning cleaning agent from the air conditioning outlet of the sprinkler.

Spring is a season with more wind, the sprinkler air conditioner not heating sand and rain, and the exterior of the car is very easy to get dirty. Sometimes, just after washing the car and parked downstairs, a layer of dust can accumulate in half a day. During the cleaning process, pay attention to the cleaning of "dead corners": sprinkler wipers, leaking grooves, etc., and regular waxing care. After cleaning, the sprinkler air conditioner not heating the paint surface should be inspected.