Vanair AIR N ARC RELIANT 300 Series Operations Manual & Parts List page 130

SECTION 7: TROUBLESHOOTING
7.2 TROUBLESHOOTING GUIDE
Fault/Malfunction
No service air output (See aslo
Compressor will not build up
pressure)
Low service air output (See aslo
Compressor will not build up
pressure)
Compressor stalls
System operating pressure below
specified minimum
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AIR IN ARC
Possible Cause
COMPRESSOR (CONTINUED)
If equipped, OSHA valve/velocity fues,
not functioning properly
Clogged compressor air filter
Solenoid valve sending contiuous
signal to inlet valve
Incorrect compressor speed
Pressure switch setting too high
Speed is set too low
Air demand too high
Compressor capacity too low to
accommodate demand
System leaks or is damaged
Pressure switch set too low/
malfunction
Input rpm too low
Contaminated inlet valve
Inlet valve fails to open
090012-OP_r0
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300 SERIES ALL-IN-ONE POWER SYSTEM
Corrective Action
Reset or replace OSHA valve.
Check air filter. Replace if necessary; refer
to Section 6.6.1, Compressor Air Filter.
Rebuild or replace solenoid valve if
defective. Refer to Section 6.6.8
Adjust speed. Refer to Section 6.6.14.
Adjust pressure switch setting. Refer to
Section 2.2.7, Adjustable Pressure
Switch, and Section 6.6.14 Adjusting the
Pressure Setting. Replace if switch
continues to deviate from setting.
Check to see if compressor goes to high
speed.
Check air tools for wear, damage, or
malfunctions. Replace or repair.
Substitute larger capacity compressor
system.
Inspect for leaks. Repair and/or replace
damaged parts as necessary. Use Section
9, Illustrated Parts List to visually confirm/
identify any part that needs to be replaced
before ordering part.
Adjust pressure switch setting. Refer to
Section 2.2.7, Adjustable Pressure
Switch, and Section 6.6.14, Adjusting the
Pressure Setting. Replace if switch
continues to deviate from setting.
Adjust to proper setting.
Remove valve and clean piston. Refer to
Section 6.6.2, Repairing the Air Inlet
Valve. Order inlet valve repair kit—see
Table 9A: Recommended Spare Parts
List.
Repair/replace inlet valve. Refer to Section
6.6.2, Repairing the Air Inlet Valve. Order
inlet valve repair kit—see Table 9A:
Recommended Spare Parts List.
Continued on next page
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