VIAIR 325C - Troubleshooting Guide

325C - 350C - 400C - 450C COMPRESSOR KIT
TROUBLESHOOTING GUIDE:
Tank pressure drops when
compressor(s)shutoff
1.Loosedraincock
2.Checkvalveleaking
3.Looseconnections
1. Tighten drain cock
2.Replacecheckvalveor
compressor
3. Check all connections with
soap and water solution
and tighten
Compressor runs
continuouslyandairow
lower than normal
1.Excessiveairusage
2.Looseconnections
3. Worn piston ring or inlet
valve.
4.Cloggedairlterelement
1. Decrease air usage
2. Check all connections with
soap and water solution
and tighten.
3.Replacecompressor
4.Replaceairlterelement
Compressor runs
continuously causing
safetyvalve(ifequipped)
to open
1.Faultypressureswitch
2.Defectivesafetyvalve
1.Replacepressureswitch
2.Replacesafetyvalve
Excessivemoisturein
discharge
1.Excessivewaterinairtank
2.Highhumidity
1.Draintank,tilttanktodrain.
Draintankmorefrequently
2.Movecompressortoarea
withlesshumidity,oruse
airlinelter
Compressor will not run 1.Nopower,orpowerswitch
inOFFposition
2.Blownfuse
3.Motoroverheats
4.Faultypressureswitch
(ifhookeduptoa
pressureswitch).
1.Makesurecompressor
switchisON
2. Disconnect compressor
frompowersource,replace
fuse.(RefertoSpecications
section for correct
fuseamperage)
3.Letcompressorcoolofffor
about 30 minutes to allow
thermaloverloadswitchtoreset.
4.Replacepressureswitch
Thermaloverload
protector cuts out
repeatedly
1.Lackofproperventilationor
ambient temperature is too high
2.Compressorvalvesfailed
1.Movecompressortowell
ventilatedarea,orareawith
lower ambient temperature
2.Replacecompressor
Excessiveknocking
or rattling
1.Loosemountingbolts
2. Worn bearing on eccentric or
motor shaft
3. Cylinder or piston ring is worn
1. Tighten bolts
2.Replacebearingor
piston assembly
3.Replacepistonorcompressor
CAUTION: NEVER DISASSEMBLE COMPRESSOR WHILE
COMPRESSOR IS PRESSURIZED.
USER MANUAL
PROBLEM: POSSIBLECAUSE(S) CORRECTIVEACTION