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16 Troubleshooting
16.1 Troubleshooting LOS
16 Troubleshooting
This section addresses the troubleshooting of SF910i in two parts. The first applies to
the Line-Of-Sight version (LOS) also called "Direct View", and the second applies to the
Fiber Optic Cable (FOC) version.
16.1 Troubleshooting LOS
Table 16.1: Troubleshooting LOS
Problem
SF910i does not sense the flame
Flame is detected but the flame relay
does not energize
Error code on display
SF910i device does not exchange
data with Flame Explorer
8VZZ005286 B
Possible Causes
Scanner is not aimed on the target
flame
Combustion is bad
Wrong wiring to the scanner
Lens is dirty
Electronics boards failure
Device is in "First Time Power Up"
Wrong wiring to the scanner
Flame-relay contact failure
Hardware failure (?)
Rx/Tx +/- polarity reversed on ATB
or RS485 line converter
RS232/RS485 serial line converter
driver not installed or not compatible
with the PC-WIN OS running Flame
Explorer
Corrective Actions
Loose the swivel flange and aim the
scanner properly
Ask for the authorized personnel to
take actions
Check wiring
Make sure that the cooling/purging
air matches the requirements, and
follow the maintenance instruction
for cleaning
Replace the unit
Change or confirm the factory default
setting and store it
Check wiring
Replace the device
Find out the error code in
Cycle SF910i power -OFF and then
-ON. If the error recurs, then decide
if the unit needs to be replaced or if
the cause can be external
Review SF910i connection earlier on
this manual and make wiring
congruent with serial converter
outputs
Section 17
105
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Table of Contents
Troubleshooting
