How to Fix Samsung Dryer Error 7

Error Code: Dryer Difficulty: Easy

Problem: Flash code: 7 flashes = Power supply fault (non-display models); voltage instability or outage

How to Fix Dryer Error

• Verify household electrical power is stable. Check circuit breaker panel to ensure dryer’s dedicated 30A breaker is fully ON.
• Measure voltage at dryer outlet with multimeter during operation – must maintain 220-240V AC. Significant drops indicate circuit overload.
• Inspect power cord and terminal block connections inside dryer for looseness, corrosion, or arcing damage. Tighten terminals to 15 in-lbs torque if accessible.
• Ensure dryer is on dedicated circuit with no other high-draw appliances sharing the line.
• For recurring voltage issues: Install whole-house voltage regulator or dedicated UPS for dryer circuit.
• After verifying stable power, restore dryer operation and monitor for error recurrence during multiple cycles.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.