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Error code reference
Sanyo Air Conditioner Error Code L3
Outdoor fan module protection-outdoor fan terminals loose, motor damaged, or fan motor module on mainboard damaged.
SourceSanyo DLC4/DLF4 R-410A Ductless Split System - Service Manualp. 53
Diagnostic procedure
The full L3 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check outdoor fan terminal connections; if loose, correct. If motor damaged, replace motor. If mainboard module damaged, replace mainboard AP1.
SourceSanyo DLC4/DLF4 R-410A Ductless Split System - Service Manualp. 53
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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