Manual for 64857 - Troubleshooting and error codes + PDF Download

Manual for 64857 - Troubleshooting and error codes + PDF Download

Brand: McGRAW

Category: Air Compressor

Manual Type:

Language:

Uploaded: April 8, 2025, 1:46 p.m.

Warranty Summary

This product has a limited 90-day warranty against defects in materials and workmanship.
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  1. Close the Drain Valve.
  2. Check for oil level.
  3. Close the in-line Shutoff Valve.
  4. Plug in the Power Cord.
  5. Pull the ring on Safety Valve to release pressure.
  6. Turn the Power Switch to AUTO.
  7. Allow the Air Compressor to build up pressure.
  8. Adjust the Regulator to set the air pressure.
  9. Connect the air tool.
  10. Open the in-line Shutoff Valve.
  11. Use the air tool as needed.
  12. Turn Power Switch OFF after use.
  13. Unplug the Air Compressor.
  14. Close the in-line Shutoff Valve.
  15. Bleed air from the tool.
  16. Drain Tank periodically.
  17. Clean and store indoors.

Troubleshooting and error codes

Problem Possible Causes Likely Solutions
Compressor does not start or restart 1. Tank(s) already pressurized.
2. Power cord not plugged in properly.
3. Incorrect power supply.
4. No power at outlet.
5. Building power supply circuit tripped or blown fuse.
6. Cord wire size is too small or cord is too long to properly power compressor.
7. Compressor needs service.		 1. No problem. Compressor will start when needed.
2. Check that cord is plugged in securely.
3. Check that circuit matches compressor requirements.
4. Reset circuit breaker, or have outlet serviced by a qualified technician.
5. Reset circuit or replace fuse. Check for low voltage conditions.
6. Use larger diameter or shorter extension cord or eliminate extension cord.
7. Have unit inspected by a qualified technician.
Compressor builds pressure too slowly 1. Incorrect power supply.
2. Crankcase oil overfilled or oil too thick.
3. Working environment too cold.
4. Safety valve leaking.
5. Loose fittings.		 1. Check that circuit matches compressor requirements.
2. Drain oil and refill to proper level with recommended oil.
3. Move compressor to a warmer location.
4. Listen for air leaking from valve.
5. Reduce air pressure, then check all fittings.
Compressor not building enough air pressure 1. Air filter needs cleaning.
2. Check Valve needs service.
3. Compressor not large enough for job.
4. Loose fittings.
5. Hose or hose connections too narrow.
6. Crankcase oil too thick.
7. High altitude reducing air output.		 1. Check air filter and clean as needed.
2. Have technician clean or replace, as needed.
3. Check if accessory CFM is met by Compressor.
4. Reduce air pressure, then check all fittings.
5. Replace with wider hose and/or hose connections.
6. Drain oil and refill to proper level with recommended oil.
7. Higher altitudes require compressors with greater output.
Overheating 1. Air filter needs cleaning.
2. Crankcase oil too thin or incorrect type.
3. Crankcase oil level too low.
4. Unusually dusty environment.
5. Extension cord used.
6. Unit not on level surface.		 1. Check air filter and clean as needed.
2. Drain oil and refill to proper level with recommended oil.
3. Add oil to proper level, check for leaks.
4. Clean filter more often or move unit to cleaner environment.
5. Eliminate extension cord.
6. Reposition unit on a level surface.
Compressor starts and stops excessively 1. Loose fittings.
2. Compressor not large enough for job.		 1. Reduce air pressure, then check all fittings
2. Check if accessory CFM is met by Compressor.

Troubleshooting and error codes

Problem Possible Causes Likely Solutions
Compressor does not start or restart 1. Tank(s) already pressurized.
2. Power cord not plugged in properly.
3. Incorrect power supply.
4. No power at outlet.
5. Building power supply circuit tripped or blown fuse.
6. Cord wire size is too small or cord is too long to properly power compressor.
7. Compressor needs service.		 1. No problem. Compressor will start when needed.
2. Check that cord is plugged in securely.
3. Check that circuit matches compressor requirements.
4. Reset circuit breaker, or have outlet serviced by a qualified technician.
5. Reset circuit or replace fuse. Check for low voltage conditions.
6. Use larger diameter or shorter extension cord or eliminate extension cord.
7. Have unit inspected by a qualified technician.
Compressor builds pressure too slowly 1. Incorrect power supply.
2. Crankcase oil overfilled or oil too thick.
3. Working environment too cold.
4. Safety valve leaking.
5. Loose fittings.		 1. Check that circuit matches compressor requirements.
2. Drain oil and refill to proper level with recommended oil.
3. Move compressor to a warmer location.
4. Listen for air leaking from valve.
5. Reduce air pressure, then check all fittings.
Compressor not building enough air pressure 1. Air filter needs cleaning.
2. Check Valve needs service.
3. Compressor not large enough for job.
4. Loose fittings.
5. Hose or hose connections too narrow.
6. Crankcase oil too thick.
7. High altitude reducing air output.		 1. Check air filter and clean as needed.
2. Have technician clean or replace, as needed.
3. Check if accessory CFM is met by Compressor.
4. Reduce air pressure, then check all fittings.
5. Replace with wider hose and/or hose connections.
6. Drain oil and refill to proper level with recommended oil.
7. Higher altitudes require compressors with greater output.
Overheating 1. Air filter needs cleaning.
2. Crankcase oil too thin or incorrect type.
3. Crankcase oil level too low.
4. Unusually dusty environment.
5. Extension cord used.
6. Unit not on level surface.		 1. Check air filter and clean as needed.
2. Drain oil and refill to proper level with recommended oil.
3. Add oil to proper level, check for leaks.
4. Clean filter more often or move unit to cleaner environment.
5. Eliminate extension cord.
6. Reposition unit on a level surface.
Compressor starts and stops excessively 1. Loose fittings.
2. Compressor not large enough for job.		 1. Reduce air pressure, then check all fittings
2. Check if accessory CFM is met by Compressor.