Troubleshooting: Diagnostic Trouble Codes (DTCs)
57
TROUBLESHOOTING
7
523175
18
Low pump efficiency
Check for:
1. Fouled pump check valves.
2. Air leaks on the injection pump inlet
plumbing.
3. Air in the chemical.
4. Plugged inlet strainer.
5. Chemical too thick to flow through the
pump.
6. Calculate the volume per minute for the
application and verify the rate is within the
range of the injection pump.
7. Check the flow monitor sensor.
8. Follow the “Injection Pump
Troubleshooting Steps (If Pump Does Not
Calibrate)” on page 58 to troubleshoot the
pump.
523176
16
Off rate high
1. Check calibration for the correct data
entry.
2. Calculate the volume per minute for the
application and verify the rate is within the
range of the injection pump.
18
Off rate low
Check for:
• Fouled pump check valves
• Air leaks on the injection pump inlet.
• Air in the chemical.
• Plugged inlet strainer.
• Chemical too thick to flow through the
pump.
• Calculate the volume per minute for the
application and verify the rate is within the
range of the injection pump.
523188
16
DI high vacuum error
1. Disconnect the vacuum switch from the
product cable. Test for continuity between
pins A and C. If the OHM meter reads a
short, the switch is good. If it reads open,
the vacuum switch is bad.
2. Check for obstructions from the inlet of
the tank. There may be debris in the inlet,
a plugged filter/strainer, hand valve
turned the wrong directions or
obstruction in the outlet of the chemical
tank.
523189
7
Injection pump fault
Return pump to a local Raven dealer for
service.
16
Invalid pump calibration
Adjust the flow correction offset.
524025
31
Security failure
Cycle the device power.
Code ID
Description
Recommended Actions
