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SDi Decades Extreme Service Manual www.ecoer.com
May. 2023Manufacturer reserves the right to change specifications or designs without notice.
Check the fastening screws on the
PCB and IPM radiator.
Are they
fixed tightly?
Replace the outdoor
control PCB.
Yes
8.7.12 EC 0d(Outdoor unit malfunction Diagnosis and Solution)
Description: The indoor unit detect the outdoor unit is error.
Recommended parts to prepare:
• Outdoor unit
Troubleshooting and repair:
Is the main board
displaying an error?
Power off, then restart the unit 2
minutes later. Does the outdoor main board
display an error code a few minutes later?
No
Yes
Refer to the prescribed steps
for resolving the issue
Yes
Tighten the screws and apply
silicon grease.
No
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