Samsung MH026FNCA User Manual

Samsung Electronics9-8
Troubleshooting
● If Error code is displayed on indoor or outdoor LED, check as follows;
- Manaul address setting
Q1
Step 1
Step 2
Contents
Turn on the system. But outdoor units PCB displayed E201 or E101 Error code.
Check point Remarks
Check to Number of indoor unit’s SW01.
Outdoor PCB
SW01
Check to power cable to indoor units.
Check to communication cable indoor units.
Wire connect
Q2
Guidance
Step 1
Contents
Turn on the system. But outdoor units PCB displayed E203 Error code.
Check point Remarks
Outdoor communication error between the outdoor main
PCB and sub PCB.
Outdoor PCB
SW01
Check to sub PCB wire and replace it. Wire connect
Q3
Error code
E121
E122
E123
E154
Guicance
Contents
Turn on the indoor units. But indoor unit displayed E121/122/123/154 Error code.
Explanation
Indoor unit room temperature sensor error (open/short)
Indoor unit heat exchanger in temperature sensor error (open/short)
Indoor unit heat exchanger out temperature sensor error (open/short)
Indoor unite fan error
Please, all units turn off and check to indoor unit’s PCB and wire connection. E121/122/123 error detected, replace
related sensor.
Q4
Error code
E162
E163
Guidance
Contents
Turn on the system. But indoor unit displayed E162/163 Error code.
Explanation
Indoor unit EEPROM Error.
Indoor unit EEPROM Option Error.
Please, all units turn off and follow 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.
Q5
Error code
E221
E237
E251
E251
E320
Guidance
Contents
Turn on the system. But outdoor unit displayed E221/237/251/320 Error code.
Explanation
Outside temperature sensor error (open/short)
Indoor unit heat exchanger in temperature sensor error (open/short)
Condenser temperature sensor error (open/short)
Compressor Discharge temperature sensor error (open/short)
Compressor OLP sensor error (open/short)
Please, The System turn off and replace sensor which is related.

Samsung MH026FNCA Specifications

General

Brand	Samsung
Model	MH026FNCA
Category	Air Conditioner
Language	English