Troubleshooting
Samsung Electronics 4-17
4-4-7 When mixed operation error code is " " indicated on the indoor temperature display
area
1. Cause of malfunction
1) When the operation mode of the problematic Indoor unit does not match that of an Indoor unit already in operation
2) When the indoor period operation mode of multi-products do not match each other
2. Check procedure
1) Inspect the operation modes of each Indoor unit.
2) Match the Indoor unit operation modes to one another.
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