Amana Furnace Error Code 2 Flashes

Two flashes on an Amana furnace indicates a pressure switch stuck closed fault. This means the control board is detecting a closed pressure switch circuit even though the induced draft blower has not yet started its cycle. The furnace locks out of ignition as a safety precaution until the condition is resolved.

Yes, this fault causes the furnace to shut down and refuse to fire, which is intentional protective behavior. The furnace will not attempt ignition while the fault is active, so there is no immediate risk of combustion or gas release from this specific code. However, the furnace will not provide heat until the fault is cleared, which can be a concern in cold weather.

Resetting the furnace by cycling the power may temporarily clear the fault code and allow the furnace to attempt a new startup sequence. However, if the underlying cause such as a shorted wire or a failed pressure switch is still present, the 2 Flashes code will return quickly. A lasting fix requires identifying and correcting the root cause before the furnace will operate reliably.

A knowledgeable DIYer can check the wiring between the pressure switch and control board for obvious shorts or damage, which requires no parts and may resolve the fault. However, confirming a faulty pressure switch requires a multimeter to test contact continuity, and replacing the switch involves working near gas and electrical components. If you are not comfortable with these tasks, a licensed HVAC technician is recommended.

If only a wiring short is found and corrected, repair costs may be limited to a service call fee, typically in the range of $75 to $150. If the pressure switch requires replacement, parts generally cost between $20 and $80 depending on the specific model, plus labor. Control board replacement, if needed in rare cases, can range from $200 to $600 or more including parts and labor.