[Air conditioner for excavator] What to do if the excavator air conditioner does not heat

What should I do if the air conditioner is not hot? It is indispensable for excavator to turn on warm air in winter. However, during the whole process of driving the excavator, many operators showed that there was no warm air or the warm air was not hot. What was the problem? Air conditioner for excavator.

Basic principle of air conditioning heating:

The air conditioner of the excavator is different from that used in the home. The air conditioner installed in the home is generally dual purpose, with heating and cooling. However, the air conditioner of the excavator can only cool, and the excavator heating system transfers the heat of the diesel engine to the car cab according to the heating system software.

Common fault causes:

If the excavator has no warm air or the warm air is not hot, the general problems lie in the following aspects:

1. Air conditioning centrifugal fan

If the centrifugal fan of the air conditioner is turned on but there is no air, it is necessary to inquire whether the centrifugal fan of the air conditioner is a problem. It can be seen whether the fuse pipe of the centrifugal fan is damaged. If the centrifugal fan is turned on, the air conditioner has wind but the wind is very small. At this moment, it is necessary to check whether the air filter of the air conditioner is blocked. If the filter element of the air conditioner is blocked, the air intake and supply of the centrifugal fan may be endangered. Air conditioner for excavator.

2. Warm water switch

There is a gate valve at the connection area between the diesel engine and the inlet and outlet of the warm air storage tank. This gate valve is very easy to ignore by many drivers. In summer, many buyers will turn off the gate valve without heating. At this moment, there must be no warm air in the cab of a warm air car. If there is no warm air, you can check whether the water heating switch is turned on first, and you can also feel whether the primary water pipe is heated. If you can't find this switch, you can generally find it along the two warm water pipes under the cab.

3. Operation panel and power circuit

Generally, the cooling and heating switches of excavators are actually operated on the operating panel of the excavator's air conditioner. Select the cooling or heating buttons and adjust the temperature to a comfortable section. However, if the air conditioning control panel has a common fault and the line has a short circuit fault, there will be no heating. It is useless to turn on the heating switch. At this moment, it is necessary to check whether the air conditioning operation panel and its air conditioning line have common faults.

When excavators are used in winter, heating is a necessary option. In general, drivers and equipment can check the causes of problems with air conditioning and heating. Many of the above areas are areas where problems with air conditioning and heating are very likely to occur, and we look forward to giving you a reference. Air conditioner for excavator.