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Pressing the reset button on one of the SRU boards will generate an F131 on the J21 and J22
processors.
Emergency stop where excessive electrical noise was generated due to arcing when the
contactors opened. This will sometimes result in an F131 fault.
AC power present on the M24 or C24 DC power busses may cause and F130 or F131 fault.
Missing connection from REF in machine room to REF on cartop may cause intermittent F131
faults.
For F131 faults, see if another fault caused an emergency stop that might have caused the
contactors to open in flight. This can sometimes cause enough electrical noise to make the
board reset.
Verify the REF terminal in the machine room is connected to the REF terminal on the cartop.
Check for AC voltage on M24 or C24 busses.
Reset faults other than F130 and F131 may indicate a defective SRU board or mis-programmed
software.
For F129, or F132 – F136, contact Smartrise as this may indicate a bad board or software.
Reset faults other than F130 and F131 may indicate a defective SRU board or mis-programmed
software.
For F129, or F132 – F136, contact Smartrise as this may indicate a bad board or software.
Reset faults other than F130 and F131 may indicate a defective SRU board or mis-programmed
software. For F129, or F132 – F136, contact Smartrise as this may indicate a bad board or
software.
Reset faults other than F130 and F131 may indicate a defective SRU board or mis-programmed
software.
For F129, or F132 – F136, contact Smartrise as this may indicate a bad board or software.
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