Troubleshooting Guide

 

 

 

 

 

Error

Title

Cause of error

Check point & Normal condition

 

code

 

 

 

 

 

 

 

 

 

 

 

 

 

• Power input AC 230V.(Outdoor, Indoor)

 

 

 

 

• The connector for transmission is disconnected.

 

05 / 53

Communication

 

• The connecting wires are misconnected.

 

(Indoor Outdoor)

• Communication poorly

• The GND 1,2 is not connected at main GND.

 

 

 

 

 

 

• The communication line is shorted at GND.

 

 

 

 

• Transmission circuit of outdoor PCB is abnormal.

 

 

 

 

• Transmission circuit of indoor PCB is abnormal.

 

 

 

 

 

 

Check Point

1.Check the input power AC 230V.(Outdoor, Indoor)

2.Check the communication wires are correctly connected.

Adjust the connection of wire

Confirm the wire of "Live", "Neutral".

3.Check the resistance between communication line and GND.(Normal : Over 2M)

4.Check the connector for communication is correctly connected.

5.Check the connection of GND1, GND2, and main GND.

6.If one indoor unit is operated normally, outdoor PCB is no problem.

Check the another indoor unit.

* CH05 is displayed at indoor unit, CH53 is displayed at outdoor unit.

Service Manual 63

Page 63
Image 63
Heat Controller DMH24DB-1, DMC24DB-1 manual Power input AC 230V.Outdoor, Indoor, Communication line is shorted at GND

DMC24DB-1, DMH24DB-1 specifications

The Heat Controller DMH24DB-1 and DMC24DB-1 units stand out in the realm of climate control solutions, combining advanced technology with user-friendly features to enhance indoor comfort. These air conditioning systems are designed to provide efficient cooling and heating for both residential and commercial spaces.

One of the main features of the DMH24DB-1 and DMC24DB-1 is their inverter technology. This cutting-edge technology allows the units to adjust the compressor speed according to the cooling demands of the space, leading to significant energy savings. By operating at variable speeds instead of a fixed setting, the inverter provides a more consistent temperature, reduces wear and tear on components, and minimizes energy consumption, which can translate to lower electricity bills.

Both models offer a sleek and modern design, making them not only functional but also aesthetically pleasing. The indoor units are designed for easy placement in various environments and can blend seamlessly with any decor. In addition, they are relatively quiet during operation, with low noise levels that enhance indoor comfort without disturbing daily activities.

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The DMH24DB-1 and DMC24DB-1 models also boast efficient filtration systems that help improve indoor air quality. The filters are designed to capture dust, pollen, and other allergens, contributing to a healthier living or working environment. This is particularly important for individuals with allergies or respiratory issues.

With a variety of cooling and heating modes, these units can cater to different user preferences and seasonal demands. Features like turbo mode are designed to quickly bring a space to the desired temperature, while the eco-friendly refrigerant helps reduce environmental impact.

In summary, the Heat Controller DMH24DB-1 and DMC24DB-1 units are high-performance air conditioning systems equipped with advanced technologies and practical features, making them an excellent choice for anyone seeking efficient and reliable climate control solutions. Their energy efficiency, enhanced air quality, and smart technology integration position them as leaders in the market.