Maintenance; Troubleshooting Chart - Husky FP2021 Operating Instructions Manual

Portable Air Compressors
Operation
(Continued)
4. Fully counterclockwise will shut off flow
of air completely.
Close
Figure 6
REGULATED OUTLET GAUGE
1. This gauge shows at-a-glance, air
pressure at outlet. Air pressure is
measured in pounds per square inch
(psi).
2. Be sure this gauge reads ZERO before
changing air tools or disconnecting hose
from outlet.
TANK PRESSURE GAUGE
Gauge shows pressure in air receiver
indicating compressor is building pressure
properly.

Maintenance

Release all
WARNING
!
pressure and
disconnect power before making any
repair.
1. Check compressor for any visible
problems, especially check air filter to be
sure it is clean.

Troubleshooting Chart

Symptom
Compressor will not run
Motor hums but cannot
run or runs slowly
2. Pull ring on safety valve and allow it to
snap back to normal position.
Figure 7
Open
WARNING
!
cannot be actuated or it leaks air after ring
is released.
3. With compressor shut off reduce tank
pressure below 10 psi, then drain
moisture from tank daily to avoid tank
corrosion. Drain moisture from tank by
tilting the tank and opening the drain
cock underneath the tank.
Drain
Cock
Figure 8
4. Turn power OFF and clean dust and dirt
from motor, tank, air lines and pump
cooling fins.
NOTE: This unit has no air filter to
maintain.
Possible Cause(s)
1. Loss of power or overheating
2. No electrical power
3. Blown fuse
4. Breaker open
5. Thermal overload open
6. Pressure switch bad
7. Tank is full of air
1. Low voltage
2. Wrong gauge wire or length of
extension cord
3. Shorted or open motor winding
4. Defective check valve or unloader
IMPORTANT: Unit should be located as far
from spraying area as hose will allow.
LUBRICATION
This is a compressor that requires no
additional lubrication.
THERMAL OVERLOAD PROTECTOR
Safety valve must
automatic reset thermal overload protector
be replaced if it
which will shut off motor if it becomes
overheated.
If thermal overload protector shuts motor
OFF frequently look for the following
causes.
1. Low voltage.
2. Wrong gauge wire or length of
3. Lack of proper ventilation.
down before start-up is possible. The
motor will automatically restart without
warning if left plugged into electrical
outlet, if the motor is turned on.
STORAGE
1. When not in use, hose and compressor
2. Tank should be drained of moisture.
3. Hose should be disconnected and hung
Corrective Action
1. Check for proper use of extension cord (see
EXTENSION CORDS, page 3)
2. Plugged in? Check fuse/breaker or motor overload
3. Replace blown fuse
4. Reset, determining why problem happened
5. Motor will restart when cool
6. Replace
7. Take compressor to service center. Compressor will
turn on when tank pressure drops to cut in pressure
1. Check with voltmeter
2. Check gauge chart, under Operation for proper
gauge wire and cord length
3. Take compressor to service center
4. Take compressor to service center
4
This compressor is
CAUTION
!
equipped with an
extension cord.
The motor must be
CAUTION
!
allowed to cool
should be stored in a cool dry place.
open ends down to allow any moisture
to drain.