Sullair 425H - Trouble Shooting

70
375 John Deere Standard and Aftercooled/Filtered Operator’s Manual and Parts List
SECTION 5
TROUBLE SHOOTING5.9
The following Trouble Shooting chart is based upon data
obtained from factory tests and information from the eld.
It lists symptoms, probable causes and remedies. This
chart does not cover all possible malfunctions or cases of
abnormal operation. Before undertaking repairs or
replacement actions, analyze all of the available data.
Performing a detailed visual inspection in all cases can
prevent additional damage or abnormal operation.
Always:
Check for loose wiring or connections. 1.
Check for damaged piping. 2.
Check for heat damage to parts (electrical short 3.
circuits can cause heat damage) which can appear as
discolorations or the presence of a burnt odor.
If the troubleshooting remedy does not work, or the
malfunction is not covered in this Trouble Shooting chart,
contact your nearest Sullair representative or Sullair for
technical assistance.
ENGINE SOPS, DOES NOT CRANK, OR CRANKS BUT DOES NOT START
SYMPTOM PROBABLE CAUSE REMEDY
NO SSAM FLASH CODE Low voltage or battery disconnected Check battery cables and tighten if loose
Check ground wire for proper attachment
to frame. Tighten if required.
Recharge or replace battery if required.
Blown fuse in wiring harness Remove and inspect fuse. Replace if
necessary.
Instrument panel connectors loose or
disconnected.
Check instrument panel connectors and
reattach if required
Check instrument panel wires for broken
connections or corrosion. Clean and/or
replace if damaged.
Faulty SSAM module Replace the module
SSAM FLASH CODE: ONE FLASH Compressor temperature switch is open Check wiring connection to the switch and
tighten if loose
Check switch continuity to ground and
replace if necessary
Low receiver tank uid level Add uid to receiver tank as required
Loose or broken fan belt Tighten or replace belt
Cooling air ow is insufcient, dirty uid
cooler core
Clean core thoroughly and check for
proper ventilation
Clogged compressor uid lter Change uid lter element
Faulty uid thermostat Change uid thermostat element
Plugged uid cooler tube (internal) Replace cooler
SSAM FLASH CODE: TWO FLASHES Engine coolant temperature switch is
open
Check wiring connection to the switch and
tighten if necessary
Check switch continuity to ground and
replace if necessary
Cooling air ow is insufcient Clean cooler and check for proper
ventilation
Loose or broken fan belt Tighten or replace belt
Low engine coolant Fill with proper water/glycol mixture as
required
Faulty water pump Change pump
Defective engine thermostat Change thermostat element
Engine problems might be present Refer to the Engine Operator’s Manual