Error Code 2 Blinks (2-sec pause)

Rheem RGRA-07EMAES Error Code 2 Blinks (2-sec pause): 2 Blinks (2-sec pause)

TL;DR
The pressure switch circuit is open, meaning the induced draft motor is not creating enough negative pressure to close the pressure switch. The inducer will run for 60 seconds, then stop for 5 minutes and retry. Check for blocked vent, excessive vent length, blocked heat exchanger, or faulty pressure switch.
Disclaimer
This article is for informational purposes only and does not guarantee the accuracy or completeness of the information provided. Always turn off power and gas supply before attempting any repairs. If you smell gas, leave immediately and call your gas company. Consult a licensed HVAC technician for diagnosis and repair. Any actions taken based on this information are at your own risk.

What Does Code 2 Blinks (2-sec pause) Mean?

The pressure switch circuit is open, meaning the induced draft motor is not creating enough negative pressure to close the pressure switch. The inducer will run for 60 seconds, then stop for 5 minutes and retry. Check for blocked vent, excessive vent length, blocked heat exchanger, or faulty pressure switch.

When to Call a Professional

Contact a licensed HVAC technician if:

Sources

  1. Rheem RGRA Series Installation Instructions (92-24161-16-17)