Appendix C
R450 Mini Collector Installation and Maintenance Guide
75
Troubleshooting the Solar Power System
The following table shows some probable causes of problems you could
see with the solar power system.
Table 18 Solar Power System Troubleshooting
Problem
Probable Cause
Recommended Action
No Charging
Power
Overload solar/load
Verify that the load is not exceeding the
system capability.
High temperature
disconnect
Allow the controller to cool down, and then
verify continued operation.
Reverse polarity
Re-configure the wiring terminations to restore
operation.
Battery select fault
Verify that the jumper settings are correct for
the system configuration.
Solar module is shaded
Confirm that the solar module angle and
direction are correct. Make sure there is no
shade.
Load
Disconnected
Load low voltage
disconnect (LVD) trip on
the load controller
Confirm that the battery voltage is above the
LVD cutoff voltage. If not, allow the battery to
fully charge.
Load overload or short
circuit
Check the wire terminations for proper
configuration.
LVD trip repeatedly
Verify that the load is not exceeding the
system capability. Confirm that the battery
depth of discharge (DOD) cycles have not
exceeded the normal end of life.
Breaker Trip or
Fuse Blown
Improper wiring
Confirm that wiring is correct and terminals are
not corroded. Use an ohm meter to confirm
the wire and terminal continuity.
Short circuit
Confirm that the load end of the circuit breaker
does not have a short circuit.
Breaker damaged
Use an ohm meter to verify the breaker
continuity out of circuit. Replace the breaker if
necessary.
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