What does Gardner Denver shutdown 134 high inlet temp mean?
Short answer: High package inlet temperature. If your Gardner Denver AirSmart controller is showing SHUTDOWN #134 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) — the ambient temperature is too high for safe compressor operation.
Which machines show this?
Gardner Denver rotary screw compressors fitted with the first-generation AirSmart microprocessor controller — a wide range of oil-injected packages, including VFD-equipped variable-speed units where the controller supervises the drive. The first-generation AirSmart reports problems as numbered codes: SHUTDOWN #1xx and #2xx faults that stop the machine, and ADVISORY #3xx warnings that let it keep running while flagging maintenance. That numbering matters when you search — the later AirSmart G2 dropped the numbers and displays plain-text fault names instead, so a numbered code on the screen tells you that you are on the earlier controller. Shutdowns clear with Stop/Reset once the machine has stopped; advisories acknowledge with the Enter key.
What causes it?
- Compressor room ambient temperature above 113°F
- Hot exhaust air from the compressor recirculating back to its own inlet
- Inadequate louvers, doors, or ventilation for the heat the package puts out
Can you fix it yourself?
Yes — this is a room problem, not a machine problem. Open louvers, add ventilation, stop exhaust recirculation, let the room cool, and restart.
Step by step — what to try, in order:
- Open doors/louvers or add ventilation to lower room temperature
- Make sure hot exhaust air from the compressor is not recirculating to its inlet
- Wait for the room to cool, then press Stop/Reset and restart
When do you need a technician — and why?
A room that routinely exceeds 113°F needs ducting or machine relocation designed by an installer — sizing intake and exhaust ducting wrong just moves the overheating problem around.
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 SHUTDOWN #134 HIGH INLET TEMP mean on a Gardner Denver AirSmart controller?
High package inlet temperature. Air entering the package exceeded 113°F (45°C) — the ambient temperature is too high for safe compressor operation.
Can I fix SHUTDOWN #134 HIGH INLET TEMP on a Gardner Denver AirSmart controller myself?
Yes — this is a room problem, not a machine problem. Open louvers, add ventilation, stop exhaust recirculation, let the room cool, and restart.
When does SHUTDOWN #134 HIGH INLET TEMP on a Gardner Denver AirSmart controller need a technician?
A room that routinely exceeds 113°F needs ducting or machine relocation designed by an installer — sizing intake and exhaust ducting wrong just moves the overheating problem around. Call an installer or technician if the compressor room routinely exceeds 113°F — ducting or relocation may be required.
Verified against service documentation: Gardner Denver AirSmart controller documentation for SHUTDOWN #134 HIGH INLET TEMP (best-aire.com)