Samsung Dryer — Error Code C90
The exhaust vent is more than ninety percent blocked.
ApplianceDB ranks 1 repair for this code, led by “Clean filter and vent”. That top fix is a moderate-difficulty DIY job, involving the exhaust vent. Severity is classified as stop failure — the appliance halts until the fault clears.
Ranked repair steps
1. Clean filter and vent
Clean the lint filter and the exhaust vent thoroughly — the vent is more than ninety percent blocked — then rerun the cycle.
moderate · basis: manufacturer first
Provenance: facts re-derived from an official manufacturer listing — Samsung US Support — Dryer Error Codes. Meanings and steps are original paraphrase; nothing is reproduced verbatim.