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PDS33 Series
Chapter 5 Diagnostics and Troubleshooting
The PDS33 solar pump controller will attempt to drive the pump to deliver water
even under adverse conditions. To ensure years of reliable service, it must also
protect the system components from conditions that might result in equipment
damage. When adverse conditions arise, the controller will continue to deliver as
much water as possible by reduced output if necessary, and will shut down only in
extreme cases. Full operation will resume automatically whenever abnormal
conditions subside.
If the controller has stopped to indicate a fault code on the display, the associated
time-out delay will vary depending on the nature of the fault. The number following
the "E" symbol corresponds to the error code for the offending condition.
5.1 Fault Codes
Fault
Fault description
code
E001 IGBT module fault
Over-current during
E002
acceleration
Possible causes
Too short acceleration time
Damaged IGBT module
Malfunction caused by
interference
Improperly grounding
Too fast acceleration
Too low input voltage
Lower-rating controller
- 35 -
Remedy
Increase acceleration time
Ask for support
Inspect external equipment
and eliminate interference
Check grounding wire
Increase acceleration time
Check the input power
supply or wiring
Replace with higher-rating
controller
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