2 flashesGoodman, Amana · ASX13 · AC

Goodman, Amana ASX13 error code 2 flashes

High or low pressure switch trip

Goodman is the platform name, and your unit may not say it

Amana ASX13 / ASZ13 is the same board with a different badge, so this page covers all of them. The fault, the checks and the parts are identical, which is why there is one page rather than one per brand.

Amana ASX13 / ASZ13

Needs attention soon

Which models this applies to. This page covers the Goodman and Amana ASX13, ASZ13, ASXC16, ASZC16 air conditioner flash codes.

What is specific to the ASX13 platform

Air conditioner platform. These are not furnace codes.

Your control board does not print the code. It blinks an LED, and you count the flashes against a legend printed on the board or inside the access panel. Count a full cycle before you read it, because the pattern pauses and repeats.

Quick answer

On Goodman ASX13 (2000s-2010s), 2 flashes is a fault. It means high or low pressure switch trip. A first thing to check: Low refrigerant charge or a leak.

Applies to: Goodman ASX13; Goodman and Amana ASX13, ASZ13, ASXC16, ASZC16 air conditioner flash codes · Air Conditioner · 2000s-2010s
Type of code: Fault; Urgency: Needs attention soon
First safe check: Clean the outdoor coil and change the filter before anything else. Both are free to check.

Checked 2026-09-26

What 2 flashes means on this model

The unit has tripped on a pressure switch, either high or low, and the control cannot tell you which one without a technician looking at it. Low side usually means a charge problem. High side usually means airflow or a condenser fan problem. The unit will not restart until the pressure returns to normal or the switch is reset.

Symptoms you will notice

Outdoor unit runs, then stops after a while
Cooling works for a while then stops
Fan may keep running after the compressor stops
Code appears on long cooling calls

Common causes

The code tells you what the control detected, not which part failed. These are the causes we see most often, roughly in order of likelihood:

Low refrigerant charge or a leak
Restricted airflow from a dirty condenser coil
Failed outdoor fan motor
Failed condenser fan capacitor
Failed or stuck pressure switch
Restricted metering device or a failing compressor

What you can safely check

These are homeowner-level checks. None of them need you to open a live electrical compartment or work on gas.

Clean the outdoor coil and change the filter before anything else. Both are free to check.
Confirm the condenser fan spins at full speed. A slow fan raises head pressure.
Check that the fan runs when the compressor is not.

Do not do these

×Do not bypass the pressure switch. It is there to protect the compressor from a condition that destroys it quickly.
×Do not add refrigerant without locating a leak first.

When to call a technician

Book a technician, do not keep resetting it

This fault will not clear on its own. Every power cycle gives the control one more failed attempt, and repeated attempts are what turn a cheap part replacement into a seized or contaminated system.

The refrigerant circuit is sealed and legally requires licensed handling. Opening it without certification releases refrigerant and can put the whole system in violation of regulation, so a low-pressure or high-pressure fault on this equipment is a call-out, not a weekend job.
If the appliance has stopped mid-cycle, is making a noise you have not heard before, or smells burnt, stop reading here and call. Those are symptoms of something the fault code does not describe well enough.

Coil and filter are fine. Charge and switch work is licensed.

What it costs to fix

Parts

Capacitor $25 to $60. Fan motor $250 to $500. Pressure switch $50 to $150. Charge $150 to $400 including labour.

Labor

Two to four hours.

DIY or technician