Trane Error Code aRF: Calculated airflow readout (cfm x 10) (Air Handler)
Trane error code aRF on a air handler means: Calculated airflow readout (cfm x 10). It is also called Trane diagnostic code aRF.
Homeowner? What Trane code aRF means for you
Usually minor Your air handler is reporting: Calculated airflow readout (cfm x 10). This code is usually informational or minor. The safe checks below often clear it; call us if it keeps showing up.
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 Trane error code aRF mean?
Alternates with the mode code during a call. The number after it is airflow divided by 10, e.g. 080 means 800 cfm. It ramps up slowly and can take 1-2 minutes to settle; some units show demand airflow instead.
Applies to: P0V0 modular blower integrated control (IMBC)
Trane models that use code aRF
P0V0A000M30SCAP0V0B000M40SCAP0V0C000M50SCAP0V0D000M50SCA
Other Trane Air Handler codes
All Trane Air Handler error codes →
Trane code aRF: homeowner questions
What does Trane code aRF mean?
Calculated airflow readout (cfm x 10). Alternates with the mode code during a call. The number after it is airflow divided by 10, e.g. 080 means 800 cfm. It ramps up slowly and can take 1-2 minutes to settle; some units show demand airflow instead.
Is it safe to keep using my air handler with code aRF?
Usually yes. Code aRF is normally minor, but if it keeps coming back have it checked.
Can I reset Trane code aRF myself?
You can try one reset (power off for 30 seconds, then on). If Trane code aRF comes back, the cause is still there and a licensed technician should check it.
Who can fix Trane code aRF near me?
Aurora Star Tech Inc. repairs Trane air handlers in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.
Troubleshooting guides
- Read or clear the last 6 faults (L6F menu) Trane · Air Handler
- Reading and clearing fault history - Trane P0V0 modular blower Trane · Air Handler
- Reset the control to factory defaults Trane · Air Handler
- Run test mode (furnace) Trane · Air Handler
Source: Trane P0V0 modular blower installer's guide 18-GE20D1-1E-EN, IMBC Display Codes, p.30; Sequence of Operation, p.32-33. 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.