What does Message -02- mean on an Ingersoll Rand SSR Intellisys?
Short answer: Motor overload. If your Ingersoll Rand SSR Intellisys (10-40 HP) is showing Message -02-, 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 Intellisys controller detected that the main motor overload circuit has tripped, indicating the motor drew more current than its overload relay allows. The controller shuts the compressor down to protect the motor.
Which machines show this?
Ingersoll Rand's SSR rotary screw compressors in the 10–40 HP class fitted with the original Intellisys microprocessor controller — a long-lived population of machines from the 1990s onward, many still in daily service. This controller reports faults as numbered messages in the form Message -02- through -08- on a small numeric display, each number mapping to one condition: motor overload, high temperature, high pressure, sensor failures, and the emergency stop pair. Practical tip: -07- and -08- work together — -08- simply means someone tried to clear the E-stop message while the button was still pushed in, so twist the button out before pressing SET.
What causes it?
- Motor running hot from poor room ventilation or high ambient
- Cooler cores and motor cooling fins blocked with dust
- An electrical or mechanical fault drawing excess current (the repeat-trip case)
Can you fix it yourself?
Sometimes — if heat was the cause, cool-down, cleaning, and better ventilation fix it. A repeating overload is not something to keep resetting.
Step by step — what to try, in order:
- Let the unit cool down before attempting a reset — overloads often trip in hot conditions
- Check that room ventilation is adequate and ambient temperature is within the compressor's rating
- Verify the cooler cores and motor cooling fins are clean and not blocked with dust or debris
- Reset the alarm once cool and note whether it recurs on the next load cycle
When do you need a technician — and why?
Checking amp draw, voltage balance, and the overload relay takes meters and starter-cabinet access; bypassing or repeatedly resetting a motor overload risks burning the motor.
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 Message -02- mean on an Ingersoll Rand SSR Intellisys (10-40 HP)?
Motor overload. The Intellisys controller detected that the main motor overload circuit has tripped, indicating the motor drew more current than its overload relay allows. The controller shuts the compressor down to protect the motor.
Can I fix Message -02- on an Ingersoll Rand SSR Intellisys (10-40 HP) myself?
Sometimes — if heat was the cause, cool-down, cleaning, and better ventilation fix it. A repeating overload is not something to keep resetting.
When does Message -02- on an Ingersoll Rand SSR Intellisys (10-40 HP) need a technician?
Checking amp draw, voltage balance, and the overload relay takes meters and starter-cabinet access; bypassing or repeatedly resetting a motor overload risks burning the motor. If the overload trips again after cooldown and cleaning, call a service technician to check amp draw, voltage balance, and the overload relay — do not keep resetting a repeating overload.
Verified against service documentation: Ingersoll Rand SSR Intellisys (10-40 HP) documentation for Message -02- (manualslib.com)