Sullair 125 Operators Manual And Parts Lists page 39

5.13 TROUBLESHOOTING GUIDE (CONTINUED)
SYMPTOM PROBABLE CAUSE
FLASH CODE: Faulty Compressor Temperature
ONE FLASH Switch
Cooling Air Flow is Insufficient
Low Compressor Fluid Sump Level
Clogged Compressor Fluid Filter
Faulty Thermostat
Loose or Broken Fan Belt
Plugged Fluid Cooler Tube (Internal) Replace cooler.
FLASH CODE: Faulty Engine Coolant Temperature
TWO FLASHES Switch
Cooling Air Flow is Insufficient
Loose or Broken Fan Belt
Engine Problems May Have
Developed
No Engine Coolant
FLASH CODE: Faulty Engine Oil Pressure Switch
THREE FLASHES
FLASH CODE: No/Low Fuel
FOUR FLASHES
Plugged Fuel Filter
Plugged Air Filter
Water/Dirt in Fuel and/or Fuel Filter
MAINTENANCE
REMEDY
Check wiring connection to switch and tighten as
required.
Check switch continuity when cool and replace if
necessary.
Clean cooler and check for proper ventilation.
Add fluid as required.
Change filter element.
Change the thermostat element.
Check fan belt and tighten/replace as necessary.
Check wiring connection to switch and tighten as
necessary.
Check switch continuity to ground when cool and
replace if necessary.
Clean cooler and check for proper ventilation.
Check fan belt and tighten/replace as necessary.
Refer to engine operators manual.
Check engine coolant level and fill with proper
water/glycol mixture as required.
Check wiring connection to switch and tighten as
required.
Install gauge in parallel with switch. Replace switch
if pressure exceeds 15 psig and switch stays open.
If pressure is less than 15 psig, refer to Engine
Operator's Manual.
Check fuel level and add fuel if necessary.
Replace and clean as required.
Replace and clean as required.
Drain water from fuel water separators on fuel fil-
ters. Siphon water from fuel tank and clean fuel
tank if necessary.
Section 5
Continued...
33