Error code reference

Frigidaire Air Conditioner Error Code OS

Outdoor ambient thermostat sensor has failed (heat pump models only); displays for 1 second every 10 seconds.

SourceFrigidaire Room Air Conditioner - Service Manual: 2010Section 3, page 3-5

Frigidaire codes Frigidaire air conditioner codes

Diagnostic procedure

The full OS procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Contact your Authorized Frigidaire Service Center.

SourceFrigidaire Room Air Conditioner - Use & Care Manual (2020218A1523)p. 9

Unlock with pass

More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

Unlock OS procedure $9.95

Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.

Where this code is documented

2 manuals in the MyPros+ library document this code for Frigidaire air conditioner.

Models covered by the manuals that document this code

More models are covered than are listed here.

75,000+ service documents · 20,000+ error codes · 100+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax

The full OS procedure

Where this code is documented

Models covered by the manuals that document this code

Related Frigidaire air conditioner error codes