Comfort Alert 2 Yellow ALERT 2 flashes - system pressure trip

What the control is telling you

Discharge or suction pressure out of limits, or the compressor overloaded.

Applies to: Amana ASX13 (CA revision) and ASX14 (1CA, 1BA and 421DA revisions) condensers fitted with the 2-wire Comfort Alert module

Likely causes

• High head pressure
• Poor airflow over outdoor coil (dirty, blocked, damaged)
• Outdoor fan not running
• Large return duct leak
• Low pressure switch opening (if fitted) - see code 1 causes

Test and repair steps

1. Warning: Kill power to the outdoor unit before touching wiring, the compressor terminals or the control.
2. Clean and clear the outdoor coil.
3. Check outdoor fan motor, capacitor and wiring.
4. Check for overcharge or non-condensables.
5. Inspect the return duct for leaks pulling in hot air.
6. If a low pressure switch is fitted, follow the long-run checks too.

Models that show this code

142 models in Goodman/Amana R-410A GSX/ASX/DSX (ANX/SSX/VSX)

Other codes on the same units

• Comfort Alert 1 Yellow ALERT 1 flash - long run time
• Comfort Alert 3 Yellow ALERT 3 flashes - short cycling
• Comfort Alert 4 Yellow ALERT 4 flashes - locked rotor
• Comfort Alert 5 Yellow ALERT 5 flashes - open circuit
• Comfort Alert 6 Yellow ALERT 6 flashes - open start circuit
• Comfort Alert 7 Yellow ALERT 7 flashes - open run circuit
• Comfort Alert 9 Yellow ALERT 9 flashes - low control voltage
• Comfort Alert TRIP Red TRIP LED - call present but compressor not running