ALTEC AIR, LLC
P1500W Series Air Dryers User’s Guide
Page 92 of 100
P011787 – Rev. S
13.17 High Compressor Last Run Time Alarm
Possible Cause
Check
Corrective Action
Low System Pressure
Verify System Pressure
Adjust System Pressure
High Flow condition
Verify Flow Rate
(
FLOW
) reading is not
higher than expected
Troubleshoot High
Flow condition
(section 13.11 )
Defective Unloader
Valve
Test Unloader Valve
operation (section 9.7 )
If this is continuously
flowing high amounts
of air, the Unloader
Valve is defective.
Replace Unloader
Valve
(section 11.2 )
Defective Heatless
Dryer Solenoid Valve
Verify consistent
Heatless Dryer cycling
(section 9.6 )
If either side is
continuously flowing
high amounts of air, the
Solenoid Valve is
defective.
Replace Solenoid
Valves included in the
8,000 Hour
Maintenance Kit
(section 11.4 )
Defective Solid State
Relay
Measure AC voltages at
Solid State Relay
(section 9.5 )
If measurements are
bad, replace Solid State
Relay (section 11.1 )
Defective Control
Board
Measure DC voltages at
Solid State Relay
(section 9.5 )
If measurements are
incorrect, replace
Control Board (section
11.2 )
Summary of Contents for P1500W Series
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