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TROUBLSHOOTING
APRIL 2021
32DFR108.C
FR2SS-SERIES SERVICE MANUAL
B. TROUBLESHOOTING FLOW CHART
CHART 4-1: TROUBLESHOOTING GUIDE
1.
NO RESPONSE FROM RAMP:
No response
from ramp
Is ramp
control
panel on/
bus on?
Is bus on/ramp
control panel
activated?
No
Disconnect
connector P1 from
electronic
controller. Check
for system power
at pin P1-6 (blue
lead).
Is proper voltage
present at P1-6?
A
Yes
No
Yes
To Page 4-7
E
To Page 4-11
Turn bus on/exit sleep mode, activate
ramp panel.