Error On Eev Step Control - Samsung MCM-D201N Installation Manual

Trouble shooting

Error on EEV step control

Outdoor unit display
Description
Reason
1. Checking method
Is the location of EVA IN sensor correct?
Is the location of EVA OUT sensor correct?
Is the EEV wire connected to PBA?
Is the amount of added refrigerant enough?
Replace the ASS'Y control PBA.
34
N/A
In cool mode, EEV step is controlled to minimum 230 steps and maximum 1700 steps. In
heat mode, the EEV step is controlled to minimum 1000 steps.
• The location of EVA IN/OUT sensor is not correct.
• EEV coil is reversed.
• All or part of EEV coil is detached.
• Refrigerant is overcharged.
Yes
Yes
Yes
Yes
Attach the EVA IN sensor to the branched pipe
No
between the distributor and the heat exchanger and to
the close part of the heat exchanger.
Check the status of sensor attachment. (Refer to p.16)
No
Attach the EVA OUT sensor to the rear part of the
heat exchanger header. Check the status of sensor
attachment. (Refer to p.16)
No
Check that the EEV wire is firmly connected to the PBA
No
Charge the appropriate amount of refrigerant.
connector.