Air Compressor Specifications
| Lubrication | Ingersoll Rand recommends All Season T30 Select lubricant from startup. Alternate Lubricants: You may use XL-300 or a comparable petroleum-based lubricant that is premium quality, does not contain detergents, contains only anti-rust, anti-oxidation, and anti-foam agents as additives, has a flashpoint of 440°F (227°C) or higher, and has an auto-ignition point of 650°F (343°C) or higher |
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Troubleshooting
37Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Motor will not start. | Main switch and fuses open. | Check all fuses and switches. Check for loose or faulty wires. |
| Motor will not start. | Starter magnetic coils open. | Check overload relay in starter. Reset starter. |
| Motor will not start. | Thermal overload tripped. | Reset starter. If starter trips repeatedly, have electrical system inspected by an electrician. |
| Motor will not start. | Defective pressure switch-contacts will not close | Repair or replace pressure switch. |
| Motor will not start. | Low voltage. | Check with voltmeter. Be sure voltage corresponds to unit specifications. |
| Starter trips repeatedly. | Improperly adjusted pressure switch. | Adjust or replace. |
| Starter trips repeatedly. | Faulty check valve. | Clean or replace |
| Starter trips repeatedly. | Correct fuse size or magnetic starter coil. | Be sure that fuses and coils are properly rated. |
| Starter trips repeatedly. | Low voltage. | Check with voltmeter. Be sure voltage corresponds to unit specifications. |
| Starter trips repeatedly. | Defective motor. | Replace motor. |
| Tank pressure builds up slowly. | Air leaks. | Tighten fittings. |
| Tank pressure builds up slowly. | Dirty air filter. | Clean or replace. |
| Tank pressure builds up slowly. | Defective compressor valves. | Install new valves. |
| Tank pressure builds up quickly. | Excessive water in tank. | Drain tank. |
| Discharge pressure relief valve pops off while compressor is running. | Wrong pressure switch setting. | Adjust to correct setting. |
| Discharge pressure relief valve pops off while compressor is running. | Defective ASME relief valve. | Replace valve. |
| Compressor will not unload (Units with head unloaders) | Wrong pilot valve setting. | Adjust to correct setting. |
| Compressor will not unload (Units with head unloaders) | Defective pilot valve. | Replace pilot valve. |
| Compressor will not unload (Units with head unloaders) | Lack of air to pilot valve | Open ball valve to pilot valve. |
| Excessive belt wear. | Pulley out of alignment. | Realign motor pulley. |
| Excessive belt wear. | Belts too tight or too loose. | Adjust belt tension. |
| Compressor runs hot. | Improper flywheel rotation. | Check for correct rotation. (Counter clockwise when viewed from drive side.) |
| Compressor runs hot. | Defective compressor valves. | Install new valve plate assembly. |
| Compressor runs hot. | Dirty air filter. | Clean or replace. |
| Compressor runs hot. | Dirty cylinder and/or intercooler. | Clean cylinder fins and/or intercooler. |
| Interstage pressure relief valve pops off. | Defective compressor valves. | Install new valves. |
| Interstage pressure relief valve pops off. | Improper valve installation. | Verify proper valve placement. |
| Excessive oil consumption. | Dirty air filter. | Clean or replace. |
| Excessive oil consumption. | Wrong oil viscosity. | Refill with proper viscosity oil. |
| Excessive oil consumption. | Oil leaks. | Tighten bolts. Replace gaskets. |
| Excessive oil consumption. | Worn piston rings. | Replace rings. |
| Excessive oil consumption. | Scored cylinder. | Replace cylinder. |
| Air escapes from centrifugal unloader when unit is running. | Centrifugal unloader release valve dirty or detective. | Clean or replace valve. |
| Air escapes from centrifugal unloader when unit is stopped. | Check valve stuck in open position. | Replace check valve. |
| System does not alternate (Duplex units only) | Starter tripped. | Reset starter. If starter trips repeatedly, have electrical system inspected by an electrician. |
| System does not alternate (Duplex units only) | Loose wiring in alternator. | Check and tighten all wiring connections. |
| System does not alternate (Duplex units only) | Defective alternator. | Replace alternator. |
Fault codes and symptom→remedy steps extracted from this unit’s service/owner documentation; verify against the official manual before servicing.
Available documents
Service manual
About
Ingersoll Rand QE5-15A — air compressor. Specifications and parts compiled from manufacturer documents.