Furnace will not run; LED status light flashes rapidly with no distinct count.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: Turn off power at the breaker before inspecting wiring. Do not attempt to repair a cracked or burned control board.
Steps to check:
- Inspect control board: Remove the blower door and visually inspect the Maytag control board for burn marks, swollen components, or corrosion.
- Check low-voltage wiring: Look for shorts between thermostat wires, especially where they pass through sheet metal. Repair any damaged insulation.
- Verify supply voltage: A technician should measure line voltage at the furnace to ensure it is within the specified range (typically 120 VAC ±10%).
When to call a technician: Rapid flash codes often indicate internal board failure or wiring faults that require professional tools and expertise to diagnose and repair.