HVAC, Appliance, CNC, and VFD Error Code Repair Guides

Browse repair guides for HVAC, appliances, refrigeration, CNC alarms, VFD faults, generators, boilers, water heaters, and commercial equipment.

• LG Dryer PF Error Code — Power Failure Fix

  6 Jun, 2026

  LG dryer PF error means a power interruption occurred mid-cycle. Usually a non-fault — restart the cycle. But recurring PF can signal a wiring issue.

• LG Refrigerator Er FF Error Code — Freezer Fan Fix

  6 Jun, 2026

  LG refrigerator Er FF means the freezer evaporator fan stopped. Unplug for 24 hours first — it clears Er FF in the majority of cases without any parts.

• LG Washer dE Error Code — Door Error Fix

  6 Jun, 2026

  LG washer dE error means the door isn't confirmed as closed and locked. Check for trapped clothing first — it's the most common cause.

• LG Washer FE Error Code — Overfill Error Fix

  6 Jun, 2026

  LG washer FE error means the machine is overfilling with water. Stop it immediately — an FE error can flood your laundry room. Here's the fix.