What does Gardner Denver shutdown 101 fan fault mean?
Short answer: Cooling/vent fan fault. If your Gardner Denver AirSmart controller is showing SHUTDOWN #101 FAN FAULT, 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?
The cooler or ventilation fan has tripped on over-temperature or overload, and the controller shut the compressor down to prevent overheating.
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?
- Blocked fan grille or cooler airflow path forcing the fan to work against restriction
- Hot, poorly ventilated compressor room pushing the fan motor into over-temperature
- Dust and debris caked on the cooler faces making the fan run harder for less cooling
- Fan motor, fuse, or wiring problem inside the electrical cabinet (the repeat-trip case)
Can you fix it yourself?
Often, yes — clearing the grille, cleaning the coolers, and ventilating the room fixes most one-off fan faults. A fault that comes back after that is an electrical problem, not a housekeeping one.
Step by step — what to try, in order:
- Check that nothing is blocking the fan grille or cooler airflow path
- Make sure the compressor room is ventilated and not excessively hot
- Clean visible dust and debris off the cooler faces with the machine off
- Press Stop/Reset to clear the fault and attempt a restart
When do you need a technician — and why?
Fan motor, fuse, and wiring checks happen inside the live electrical cabinet, which requires lockout and electrical test equipment plant staff shouldn't improvise.
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 #101 FAN FAULT mean on a Gardner Denver AirSmart controller?
Cooling/vent fan fault. The cooler or ventilation fan has tripped on over-temperature or overload, and the controller shut the compressor down to prevent overheating.
Can I fix SHUTDOWN #101 FAN FAULT on a Gardner Denver AirSmart controller myself?
Often, yes — clearing the grille, cleaning the coolers, and ventilating the room fixes most one-off fan faults. A fault that comes back after that is an electrical problem, not a housekeeping one.
When does SHUTDOWN #101 FAN FAULT on a Gardner Denver AirSmart controller need a technician?
Fan motor, fuse, and wiring checks happen inside the live electrical cabinet, which requires lockout and electrical test equipment plant staff shouldn't improvise. Call a service technician if the fault returns, since fan motor, fuse, and wiring checks involve the electrical cabinet.
Verified against service documentation: Gardner Denver AirSmart controller documentation for SHUTDOWN #101 FAN FAULT (best-aire.com)