4-1
“Oil-Less” Scroll Laboratory Air
4107 9006 25.11
4.0 Trouble Shooting
Problem
Possible Causes
Solution
Failure to start
Main power disconnected
Turn on main power
Change power supply phase on incoming
power
Power failure
Restore power
Main fuse blown
Replace fuse
Fuse blown in control circuit
Replace fuse
Overload tripped on starter
Reset & check for system overload
High temperature sensor activated
Allow unit to cool; reset alarm & check for
over temperature condition
Pressure sensor open
Adjust or replace sensor
Loose or faulty connection
Check & tighten all wire connections
Power failure
Main fuse blown
Replace fuse
Fuse blown in control circuit
Replace fuse
Compressor shuts off
unexpectedly
Overload tripped on starter
Reset & check for system overload
Pressure sensor failure
Replace
Clogged inlet fi lter
Check for dirty/clogged inlet fi lter
Replace inlet fi lter
High temperature sensor activated
Allow unit to cool; reset alarm & check for
over temperature condition
High temperature alarm
High temperature sensor activated
Allow unit to cool; reset alarm & check for
over temperature condition
Motor overheating
Low voltage
Check for proper supply voltage
V-belt too tight
Adjust belt tension
Defective motor
Contact
BeaconMedæs