Samsung MH020FVEA Service Manual page 143

Q5 When system start in cooling mode, System don't operate and display E441 Error code
FJM PLUS is able to operate by -10˚C
But we admit that minimum Cooling temperature is by -5˚C
Analysis
Please, Remember cooling operation range.
Q6 While using heating, outdoor unit turn off and display E404 Error code.
Heating overload safety mode make this situation.
Analysis After System restart automatically until 3 times, System display this error code and stop.
System can operate by remote controller input signal or K3(reset) key input.
Step 1 Check indoor units air flow.
Step 2 Check outdoor unit air flow and installation (outdoor air flow blocking & over charging)
Q7 When system start in Heating mode, System don't operate and display E440 Error code.
FJM PLUS is able to operate up to 30˚C
But we admit that Maximum Heating temperature is up to 24˚C
Analysis
Please, Remember Heating operation range.
- Try-run Check Error
While the system is working try-run mode, system turn off and display E128 / 129 / 246 / 261 / 419 / 422 / 554
Q1
Error code.
These Error codes only apply with Try-run mode, in case of system have some defect as result of try-run operation.
Analysis
✳ Refer to self-detection algorithm (Check Error Code meaning and check it out)
Samsung Electronics
Contents
Check point
Contents
Check point
Contents
Check point
Contents
Check point
Troubleshooting
Remarks
Remarks
Remarks
Remarks
9-11