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Troubleshooting (continued)
Display
Code
Message
F35
F35 OPEN
HELD
F36
F36 CLOSE
F37
HELD
F37 STOP
HELD
Description
Possible Causes Diagnosis
Input button held/
Input device
stuck for at least
wiring short or
2 minutes.
open circuit.
Faulty accessory
connected to
OPEN/ CLOSE/
STOP terminal
Input device
button stuck
Inspect wiring at OPEN/
CLOSE/STOP terminals for
open or short
Disconnect accessories
from the terminals
Check that all buttons return
to the normal state properly
when released
74
Resolution
Correct wiring fault
If problem is resolved by
disconnection of other
external accessories,
wiring issue, faulty
accessory, or
incompatible accessory
Repair, clean, or replace
sticking buttons or
controls as necessary
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