11
Speedaire Operating Instructions
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Troubleshooting
Risk of Unsafe
Operation. Unit cycles automatically when
power is on. When servicing, you may be
exposed to voltage sources, compressed
air, or moving parts. Before servicing unit
PROBLEM
CAUSE
CORRECTION
Low pressure or
not enough air
or Compressor
does not stop
Tank drain valve is open
Close drain valve
Fittings leak
Check fittings with soapy water . Tighten or reseal
leaking fittings . DO NOT OVERTIGHTEN .
Restricted air intake
Clean or replace intake filter element .
Prolonged excessive use of air
Decrease amount of air used .
Compressor not large enough
Check air requirement of accessory . If it is higher than CFM and
pressure supplied by compressor, you need a larger compressor .
Most accessories are rated at 25% of actual CFM while running continuously .
Hole in air hose
Check and replace if necessary .
Tank leaks
Immediately replace tank . DO NOT attempt to repair .
Blown seals
Replace seals .
Valve leaks
Replace seals .
Leaking or worn piston
Replace piston .
Air leaks from
regulator, or
regulator does not
regulate pressure
Dirty or damaged regulator
internal parts .
Replace regulator or internal parts .
Regulated
pressure
gauge reading
drops when air
accessory is
being used
This is normal
If pressure drops too low, adjust regulator while accessory is used .
Compressor not large enough
Check air requirement of accessory . If it is higher than CFM and pressure
supplied by compressor, you need a larger compressor . Most accessories
are rated at 25% of actual CFM while running continuously .
Pressure relief
valve opens
Tank pressure exceeded
normal operating pressure
Replace pressure switch
Pressure switch stuck
Replace pressure switch
Motor will not run Tank pressure exceeds preset pres-
sure switch limit
Motor will start automatically when tank pressure drops
below cut- in pressure of pressure tank .
Make sure the Thermal Overload
Switch has not tripped . The motor
has a built in thermal cut out that trips
when necessary to protect the motor
from damage when overheated .
Fuse blown or circuit breaker tripped
To reset the motor overload toggle turn the Power Switch to the OFF position and
unplug the unit from the power outlet . Allow 10 minutes (minimum) for motor
overload cut-out to cool and reset . Unit can then be plugged in and re-started .
• Replace blown fuse or reset circuit breaker . Do not use fuse or circuit
breaker with higher rating than specified for your branch circuit .
• Check for proper fuse; “Fusetron” type T is acceptable .
• Check for low voltage and proper extension cord size .
• Disconnect other applications from circuit . Operate
compressor on a dedicated circuit .
Check valve stuck open
Remove and clean or replace .
Wrong wire gauge in cord or exces-
sive extension cord length
Check for proper gauge and extension cord length .
Loose electrical connections
Contact authorized service center .
Paint spray on internal motor parts
Have checked at service center . Do not operate compressor in the paint spray area
Possible defective motor
Have checked at service center .
unplug or disconnect electrical supply to
the air compressor, bleed tank of pres-
sure, and allow the air compressor to cool.