Troubleshooting Chart
Symptom Possible Cause(s) Corrective Action
1 . Switch in OFFp o s i t i o n
2 . No electrical power at wall outlet
3 . Compressor has reached automatic
shut-off pressure
4 . Motor overheated
5 . Loose electrical connection
6 . ON / OFFswitch bad
7 . Pressure switch bad
8 . Defective motor
1 . Lack of proper ventilation/room
temperature too high
2 . Excessive air usage, compressor too
s m a l l
1 . Open tank drain valve
2 . Loose connections (fittings, tubing,
air hose, any connections, etc.)
3. Tank leaks
1 . Excessive air usage, compressor too
s m a l l
2. Open tank drain valve
3. Loose connections (fittings, tubing,
air hose, any connections, etc.)
4. Pump wore out
1 . Excessive water in tank
2 . High humidity
1 . Defective pressure switch
2 . Defective safety valve
1 . Make sure compressor is plugged in and switch is ON
2 . Check circuit breaker or fuse at electrical panel.
3 . Release air from tank until compressor restarts
a u t o m a t i c a l l y
4 . Allow compressor to cool for approximately 30
minutes so thermal overload switch will reset. Make
sure compressor is run in a clean, well-ventilated area
where temperature will not exceed 100°F.
5 . Check all electrical connections
6 . Replace ON / OFF switch
7 . Replace pressure switch
8 . Replace pump / motor assembly
1 . Move compressor to a clean,well ventilated area
where temperature will not exceed 100°F.
2 . Decrease usage or purchase unit with higher air
delivery (SCFM)
1 . Close tank drain valve
2 . Check all connections with soap and water solution.
If a leak is detected, tighten. Or remove fitting and
apply pipe tape to threads and reassemble.
Do not disassemble check valve.
With air in tank, bleed tank first.
3 . Check entire tank for leaks with soap and water
s o l u t i o n .
1 . Decrease usage or purchase unit with higher air
delivery (SCFM)
2.Close tank drain valve
3 . Check all connections with soap and water solution.
If a leak is detected, tighten. Or remove fitting and
apply pipe tape to threads and reassemble.
4.Replace pump / motor assembly
1 . Drain tank, tilt tank to remove moisture
2 . Move to area of less humidity; use air line filter
1 . Replace pressure switch
2 . Replace safety valve with genuine replacement part
Compressor will not run
Thermal overload
protector cuts out
r e p e a t e d l y
Tank pressure drops
when compressor shuts
o f f
Compressor runs
continuously / air output
lower than normal
Excessive moisture in
discharge air
Safety valve pops open
FP202801, FP202901, FP202897,
FP202999DB, FP202999DQ, and FP202899TT
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