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Dewpoint lamp does not light
Power switch is not on
Supply voltage is incorrect
Bad connection from dewpoint therrmistor
to control board
Dewpoint lamp is burned out
Depress switch on front of dryer control
panel
Verify proper voltage at inlet to dryer
Refer to wiring diagram and check proper
connections
Verify proper lamp function
Run lamp does not turn on
Lamp is non functional
Air pressure is low and air pressure switch is
not made
Air pressure switch is non-functional
No supply voltage
Check lamp
Verify proper pressure at inlet of dryer –
check bypass
Check pressure switch connections at switch
and control board
Verify proper voltage
Alarm lamp is on
Condenser high temperature switch is open
Compressor high temperature
switch is open
Ambient air temperature is too high
Inlet temperature to the dryer is too high
Check ambient temperature, fan motor,
condenser filter, for problems.
Check fan and high condenser temp
thermistor for proper location.
Verify liquid injection valve connections at
valve and control board.
Verify proper inlet air and ambient
conditions. Refer to specification table for
proper parameters.
See specification table for proper
parameters. Provide ventilation or means of
controlling ambient to ensure proper
conditions.
Verify proper aftercooler operation. See
specification table for proper temperature
limits.
Yellow alarm light is on
dewpoint display
Dryer is not running
No air flow through dryer or bypass is open
Inlet air temperature is too high
Air flow through dryer is too high
Dewpoint thermistor is not in
the well
Open connection from dewpoint probe to
control board
Depress on button on control panel and
verify proper operation
Close the bypass.
Open all valves.
Check for restrictions in airflow.
See previous high inlet information
See specification table for proper airflow
parameters. Adjust airflow to proper levels.
Place thermistor securely in the well
Verify proper connections at probe and
control board.
RDS Series — 50-1000 SCFM
Section 7
Troubleshooting Guide
Problem
Possible Cause
Solution
Summary of Contents for RDS Series
Page 21: ...21 Notes...
Page 23: ...23 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 50 75 SCFM AIR COOLED...
Page 25: ...25 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 100 125 SCFM AIR COOLED...
Page 27: ...27 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 150 200 SCFM AIR COOLED...
Page 29: ...29 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 250 SCFM AIR COOLED...
Page 31: ...31 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 300 SCFM AIR COOLED...
Page 33: ...33 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 400 SCFM AIR COOLED...
Page 35: ...35 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 500 SCFM AIR COOLED...
Page 37: ...37 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 650 SCFM AIR COOLED...
Page 39: ...39 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 800 SCFM AIR COOLED...
Page 41: ...41 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 1000 SCFM AIR COOLED...
Page 43: ...43 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 150 200 SCFM WATER COOLED...
Page 45: ...45 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 250 SCFM WATER COOLED...
Page 47: ...47 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 300 SCFM WATER COOLED...
Page 49: ...49 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 400 SCFM WATER COOLED...
Page 51: ...51 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 500 SCFM WATER COOLED...
Page 53: ...53 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 650 SCFM WATER COOLED...
Page 55: ...55 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 800 SCFM WATER COOLED...
Page 57: ...57 Replacement Part Illustration RDS Series 50 1000 SCFM Section 8 1000 SCFM WATER COOLED...
Page 63: ...63 Wiring Diagrams Air Cooled Water Cooled RDS Series 50 1000 SCFM Section 9 650 SCFM 230 3 60...
Page 69: ...69 NOTES...