Goodman Error Code RDS 2 flashes: Control board internal fault (leak detection board) (Air Handler)
Goodman error code RDS 2 flashes on a air handler means: Control board internal fault (leak detection board). It is also called Goodman diagnostic code RDS 2 flashes.
Homeowner? What Goodman code RDS 2 flashes means for you
Call a technician Your air handler is reporting: Control board internal fault (leak detection board). The air handler has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.
Safe things you can check yourself
- Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
- Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.
- Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
- Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.
Call (647) 657-2977Book a service call
Licensed technicians serving Vaughan, Toronto and the GTA.
What does Goodman error code RDS 2 flashes mean?
Red LED flashes 2 times, then off 5 s: the A2L board has found a problem with the detection system.
Applies to: R-32 air handlers with refrigerant detection system (A2L PCB + R32 sensor): AMST, AWSF/AWST, ACSF
Common causes of Goodman code RDS 2 flashes
- Internal fault on the A2L control board
- Sensor or connection problem (to be ruled out)
Goodman models that use code RDS 2 flashes
ACSF****13**AAAMST***U1300AAAWSF****13**AAAWST****13**AA
Other Goodman Air Handler codes
All Goodman Air Handler error codes →
Goodman code RDS 2 flashes: homeowner questions
What does Goodman code RDS 2 flashes mean?
Control board internal fault (leak detection board). Red LED flashes 2 times, then off 5 s: the A2L board has found a problem with the detection system.
Is it safe to keep using my air handler with code RDS 2 flashes?
It depends on the cause. The air handler has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.
Can I reset Goodman code RDS 2 flashes myself?
You can try one reset (power off for 30 seconds, then on). If Goodman code RDS 2 flashes comes back, the cause is still there and a licensed technician should check it.
Who can fix Goodman code RDS 2 flashes near me?
Aurora Star Tech Inc. repairs Goodman air handlers in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.
Troubleshooting guides
- Blower not running - R-32 AMST/AWSF EEM air handler Goodman · Air Handler
- No electric heat - R-32 air handler heat kit Goodman · Air Handler
- Outdoor unit not communicating - ComfortBridge AVPTC/MBVC Goodman · Air Handler
Source: Goodman RS6200301 R-32 GLXS/ALXS/GLZS/ALZS service (07-2024), A2L PCB Fault Code and Recommended Action table p.25-26. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.