RFS BD1500W Series, User Manual

Page: 89 / 98

Radio Frequency Systems BD1500W Series Air Dryers User’s Guide
Page 89 of 98 100518834 – Rev. B
13.13 Inconsistent Heatless Dryer Cycling
Possible Cause Check Corrective Action
Defective Solenoid
Valve Measure voltage going
to the Heatless Dryer
Solenoid Valves
(section 9.8 ) If voltage IS present,
replace Solenoid Valves
included in the 8,000
Hour Maintenance Kit
(section 11.6 )
Defective Cycle Timer Measure voltage going
to the Heatless Dryer
Solenoid Valves
(section 9.8 ) If voltage IS NOT
present, replace the
Cycle Timer
(section 11.3 )
13.14 Compressor Doesn’t Operate
Possible Cause Check Corrective Action
System is in Shutdown
state On the Display Panel,
verify that the system is
in
SHUTDOWN state
Press the RESET
Button
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. )
No power to
Compressor Measure Compressor
voltage (section 9.3 ) If voltage is not present
or fluctuates, continue
to next Possible Cause
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 )
13.15 Compressor Won’t Build Pressure
Possible Cause Check Corrective Action
Low System Pressure Verify System Pressure
Adjust System
Pressure.
Defective Unloader
Valve Test Unloader Valve
operation (section 9.7 )
If this is continuously
flowing high amounts Replace Unloader
Valve
(section 11.2 )