ALTEC AIR, LLC
P550W Series Air Dryers User’s Guide
Page 88 of 98
P011658 – Rev. S
13.12 High Cabinet Temperature Alarm
Possible Cause
Check
Corrective Action
Fan Failure
Verify fan is running
(section 9.8 )
Check for loose fan
wiring (section 14.1 )
Replace defective fan
(section 11.1 )
High Ambient
Temperature
Verify temperature of
Dryer operating
location. Recommended
ambient temperature is
40°-85°F.
Lower the ambient
temperature of the
Dryer’s operating
location
13.13 Inconsistent Heatless Dryer Cycling
Possible Cause
Check
Corrective Action
Defective Solenoid
Valve
Measure voltage going
to the Heatless Dryer
Solenoid Valves
(section 9.7 )
If 53 VDC (120V unit)
or 110 VDC (240V
unit)
IS
present, replace
Solenoid Valves
included in the 8,000
Hour Maintenance Kit
(section 11.4 )
Defective Cycle Timer
Measure voltage going
to the Heatless Dryer
Solenoid Valves
(section 9.7 )
If 53 VDC (120V unit)
or 110 VDC (240V
unit)
IS NOT
present,
replace the Cycle Timer
(section 11.3 )
13.14 Compressor Doesn’t Operate
Possible Cause
Check
Corrective Action
Defective compressor
Measure compressor
voltage
(section 9.3 )
If voltage is good,
replace compressor
(section 11.2 )
or send it in for repair
(section 12. )
Defective control board Measure compressor
voltage
(section 9.3 )
If measurements are
incorrect, replace
control board (section
11.1 )
System is in Shutdown
state
On the Display Panel,
verify that the system is
in
SHUTDOWN
state
Press the
RESET
Button
Summary of Contents for AIR P550W
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