How to adjust the heat in Kato excavator air conditioner

It is essential to turn on the warm air for heating of the excavator. However, when driving the excavator, many operators reported that there is no warm air or the warm air is not hot. So what is the problem?

Principles of air conditioning and heating

The air conditioner of the excavator is different from the air conditioner used at home. Home air conditioners are generally dual-purpose, with heating and cooling. However, the air conditioner of an excavator generally only has a cooling function, while the heating of the excavator transfers the heat of the engine to the cab through the heating system.

Cause of failure

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

1. Air conditioning fan

If the air conditioner fan is turned on but there is no wind, it is time to check whether there is a problem with the air conditioner fan. You can first check whether the fuse of the lower blower is damaged. If you turn on the fan and there is wind from the air conditioner but it is very small, you should check whether the air filter element of the air conditioner is clogged. If the air conditioner filter element is clogged, it will affect the air intake of the fan.

2. Warm water switch

There is a valve where the inlet and outlet pipes of the engine and the heater tank are connected. This valve is something that many drivers tend to overlook. In summer, many car owners will close the valve because heating is not needed. At this time, if the heating is turned on, there will definitely be no heating in the cab. If there is no warm air, you can first check whether the hot water switch is turned on, or you can use your hands to feel whether there is heat in the water pipe. If you can't find this switch, you can usually find it by following the two heating pipes under the cab.

3. Control panel and circuit

Generally, the cooling and heating switches of excavators are operated on the control panel of the excavator air conditioner. Select the cooling or heating button and adjust the temperature. Just reach the comfortable zone. But if the air conditioning panel fails and the wiring becomes short-circuited, there will be no warm air. Even turning on the heater switch doesn't help. At this time, you must first check whether the air conditioning control panel and air conditioning circuits are faulty.

Heating is a must-have option when using an excavator. Generally, if there is a problem with the air-conditioning and heating, the driver and the owner can basically check the cause by themselves. The above problems are prone to problems with the air-conditioning and heating. place, I hope it can be a reference for everyone.

Disclaimer: The content of this website comes from the author's contributions or reprints from the Internet. The purpose is to convey more information. It does not mean that this website agrees with its views or confirms the authenticity of its content. If there is any infringement in the article content and accompanying pictures or if you have any objection to the article's views, please contact us. If you reprint an article from this website, you must retain the source of the article indicated on this website and bear legal responsibility. Contact number: 0535-6792765

Excavator