What does High Inlet Temp mean on a Gardner Denver AirSmart G2?
Short answer: High package inlet temperature (G2 advisory). If your Gardner Denver AirSmart G2 controller is showing High Inlet Temp, the controller has logged a specific, documented condition. This page covers what it means, what causes it, what you can safely fix yourself, and when — and why — it takes a technician.
What exactly is the machine telling you?
Air entering the package exceeded 113°F (45°C) (104°F/40°C on some models). The documented action is to wait for the ambient temperature to cool.
Which machines show this?
Gardner Denver rotary screw compressors with the second-generation AirSmart G2 controller, the color-display successor to the original AirSmart. The key difference for anyone searching a fault: the G2 displays fault names as plain text — "High Discharge Temp", "Drive 1 Fault", "Change Separator" — while the first-generation AirSmart showed numbered codes like SHUTDOWN #128. If your display shows words with no number, you are on a G2. Shutdowns stop the machine and reset with the STOP button once it has come to rest; advisories keep the machine running and clear from the home screen's upper-right (Gardner Denver logo) button. Many G2 packages pair the controller with a variable frequency drive it supervises.
What causes it?
- Compressor room air above 113°F (104°F on some models)
- Hot compressor exhaust recirculating to the package inlet
- Not enough louver or ventilation capacity for the room
Can you fix it yourself?
Yes — this is a ventilation problem: cool the room, stop the recirculation, and reset the advisory with the logo button once the temperature drops.
Step by step — what to try, in order:
- Add ventilation or open louvers to cool the compressor room
- Prevent hot compressor exhaust from recirculating to the inlet
- Reset the advisory with the logo button once the room cools
When do you need a technician — and why?
A room that runs this hot every day needs ducting changes sized by an installer — undersized intake or exhaust ducting will keep the machine flirting with temperature faults all summer.
If it does come to a service call and you're in Nashville, TN or Birmingham, AL, we maintain independently compiled lists of local companies that service industrial air compressors — real businesses with verified contact information, none of whom paid to be listed.
Related questions
What does High Inlet Temp mean on a Gardner Denver AirSmart G2 controller?
High package inlet temperature (G2 advisory). Air entering the package exceeded 113°F (45°C) (104°F/40°C on some models). The documented action is to wait for the ambient temperature to cool.
Can I fix High Inlet Temp on a Gardner Denver AirSmart G2 controller myself?
Yes — this is a ventilation problem: cool the room, stop the recirculation, and reset the advisory with the logo button once the temperature drops.
When does High Inlet Temp on a Gardner Denver AirSmart G2 controller need a technician?
A room that runs this hot every day needs ducting changes sized by an installer — undersized intake or exhaust ducting will keep the machine flirting with temperature faults all summer. Call an installer if the room regularly runs this hot — ducting changes may be needed.
Verified against service documentation: Gardner Denver AirSmart G2 controller documentation for High Inlet Temp (best-aire.com)