Troubleshooting

If Error code is displayed on indoor or outdoor LED, check as follows;

-Manaul address setting

 

Contents

 

Q1

Turn on the system. But outdoor units PCB displayed E201 or E101 Error code.

 

 

 

 

 

 

Check point

 

Remarks

Step 1

Check to Number of indoor unit’s SW01.

 

Outdoor PCB

 

SW01

 

 

 

 

 

 

 

Step 2

Check to power cable to indoor units.

 

Wire connect

Check to communication cable indoor units.

 

 

 

 

 

 

 

 

Contents

Q2

Turn on the system. But outdoor units PCB displayed E203 Error code.

 

 

Check point

Remarks

Step 1

Outdoor communication error between the outdoor main

.Outdoor PCB

PCB and sub PCB.

SW01

 

Step 2

Check to sub PCB wire and replace it.

Wirre connect

 

Contents

Q2

Turn on the system. But indoor unit displayed E121/122/123/154 Error

 

 

Error code

Explanation

E121

Indoor unit room temperature sensor error (open/short)

 

 

E122

Indoor unit heat exchanger in temperature sensor error (open/short)

 

 

E123

Indoor unit heat exchanger out temperature sensor error (open/short)

 

 

E154

Indoor unite fan error

 

 

Guicance

Please, all units turn off and check to indoor unit’s PCB and wire connection. E121/122/123 error detected, replace

related sensor.

 

 

 

 

 

Contents

Q4

Turn on the system. But indoor unit displayed E162/163 Error code.

 

 

 

Error code

 

Explanation

E162

Indoor unit EEPROM Error.

 

 

E163

Indoor unit EEPROM Option Error.

 

 

 

Please, all units turn off and follow guidance.

Guidance

E163

: Please reset indoor Option code.

E163

: If you don’t know about that, replace indoor unit PCB which is related.

 

 

E162

: Please replace indoor unit PCB which is related.

 

 

 

 

Contents

Q5

Turn on the system. But outdoor unit displayed E221/237/251/320 Error

 

 

Error code

Explanation

E221

Outside temperature sensor error (open/short)

 

 

E237

Indoor unit heat exchanger in temperature sensor error (open/short)

 

 

E251

Condenser temperature sensor error (open/short)

 

 

E251

Compressor Discharge temperature sensor error (open/short)

 

 

E230

Compressor OLP sensor error (open/short)

 

 

Guidance

Please, The System turn off and replace sensor which is related.

Samsung Electronics

9-8

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Samsung MH026FNCA service manual Contents

MH026FNCA specifications

The Samsung MH026FNCA is an innovative solution designed to meet the diverse needs of residential and commercial spaces. As a part of Samsung's advanced lineup of air conditioning systems, this model exemplifies the brand's commitment to quality, efficiency, and cutting-edge technology. With an array of features, the MH026FNCA stands out as an ideal choice for users seeking reliable climate control in their environments.

One of the standout characteristics of the Samsung MH026FNCA is its energy efficiency. Equipped with a powerful inverter technology, it adjusts the compressor speed to maintain the desired temperature with minimal energy consumption. This not only helps in reducing electricity bills but also contributes to a more sustainable lifestyle, making it an eco-friendly choice for consumers.

The MH026FNCA also incorporates a multi-stage filtration system, which significantly improves indoor air quality. This system includes a washable pre-filter and a high-performance HEPA filter that captures dust, allergens, and other microscopic particles, ensuring that the air circulated in the room is fresh and clean. This feature is particularly beneficial for those who suffer from allergies or respiratory issues.

In terms of usability, the Samsung MH026FNCA is designed with convenience in mind. It comes with a user-friendly remote control that allows users to adjust settings effortlessly from a distance. Additionally, its smart technology enables compatibility with various smart home systems, offering the ability to control the unit via smartphone apps or voice commands for seamless integration into modern living spaces.

The robust build quality of the MH026FNCA enhances its reliability, ensuring long-lasting performance even in demanding conditions. With a sleek design and compact size, it can easily blend into different interior decors while providing quick and effective cooling or heating, depending on the season.

Furthermore, the MH026FNCA features advanced noise reduction technologies, making it one of the quietest models in its class. Users can enjoy a peaceful environment without the distraction of loud operational sounds, making it ideal for bedrooms, offices, and public spaces where tranquility is essential.

Overall, the Samsung MH026FNCA is a testament to innovation in air conditioning technology, combining energy efficiency, advanced filtration, smart features, and aesthetic appeal. For those in search of an effective climate control solution, this model sets a high standard that meets various consumer requirements without compromising on performance or comfort.