E-28TroubleshootingDetection of errors If an error occurs during the operation, an LED flickers and the operation is stopped except the LED. If you re-operate the air conditioner, it operates normally at first, then detect an error again.LED Display on the receiver & display unitC OMPLETING THE INSTALLATIONDisplayed on appropriate indoorunit which is operatingDisplayed on appropriate indoorunit which is operatingDisplayed on appropriate indoorunit which is operatingDisplayed on outdoor unit1. Error of indoor unit: Displayedon the indoor unit regardlessof operation2. Error of outdoor unit:Displayed on the indoor unitwhich is operatingPower resetError of temperature sensor in indoor unit(OPEN/SHORT)Error of heat exchanger sensor in indoor unitError of heat exchanger OUT sensor in indoor unitError of outlet temperature sensor in indoor unit(OPEN/SHORT): For heat pump models onlyError of mixed operationError of outdoor temperature sensorError of COND sensorError of DISCHARGE sensor1. No communication for 2 minutes betweenindoor unit and outdoor unit(communication error for more than 2 minutes)2. Indoor unit receiving the communicationerror from outdoor unit3. Outdoor unit tracking 3 minute error4. When sending the communication errorfrom outdoor unit the mismatching of thecommunication numbers and installednumbers after completion of tracking.(communication error for more than2 minutes)X X XXX XXXXXXXXX XXXXXX On Flickering X Off If you turn off the air conditioner when the LED is flickering, the LED is also turned off. If you re-operate the air conditioner, it operates normally at first, then detect an error again.OperatingIndicatorsAbnormal conditions Green RedConcealed TypeStandard TypeLED Display

safety precautions

deciding on where to install the air conditioner

air conditioner and accessories

deciding on where to install the indoor unit

indoor unit installation

purging the unit

connecting the refrigerant pipe

cutting/flaring the pipes

leak test

drain pipe and drain hose installation

testing the drainage

connecting the connection cord

assigning address to indoor unit

additional functions

installation diagram

installation method

placing the indoor unit in position

troubleshooting

Samsung MH080FXCA4A Installation Manual

Safety Precautions

Name of Each Part

outdoor unit

Remote Control – Buttons and Display

Inserting the Remote Control Batteries

selecting auto mode

Selecting Cool Mode

Selecting Heat Mode

Selecting Dry Mode

Selecting Fan Mode

Selecting Good Sleep Mode

selecting the energy saving function

Selecting the Turbo Function

adjusting the airﬂow direction vertically

Setting the On Timer

Operating Your Air Conditioner Without the Remote Control

C leaning Deodorizing and Bio filter(Option)

Temperature and Humidity Ranges

Solving Common Problems

Periodical Checks

Protections enabled by the Unit control system

MH050FXCA2A

Precautions

Disposing of the unit

Product Specifications

samsung electronics

Accessory and Option Specifications

Alignment and Adjustments

Setting Option Setup Method

Option Code Procedure for MH Neo Forte

Disassembly and Reassembly

Indoor Unit

Outdoor Unit

Exploded Views and Parts List

Wiring Diagram

Schematic Diagram

PCB Diagram

Troubleshooting

Checking and Testing operations

Error codes

Operation case troubleshooting

Fault Diagnosis by Symptom

PCB Inspection

Reference for Installation

Connecting Up and Purging the Circuit

Refrigerant Refill

Flare Nut Fixing Torque

Pump down" Procedure

Reference Information

Refrigerating Cycle Diagram

Pressure & Capacity mark

Q & A for Non-trouble

Common sense of refrigeration

disassembly and reassembly

indoor unit

SUB PCB(Indoor Unit)

MAIN PCB(Outdoor Unit)

Refrigerant Adjustment

pump down" procedure

pressure & capacity mark

q & a for non-trouble

MH080FXCA4A