Honeywell S7999D1048 - Page 56

S7999D1048 COMBUSTION SYSTEM OPERATOR INTERFACE DISPLAY
65-0321—01 56
61 Actuators not reaching lightoff point. Check for actuator wiring problems or stuck valves/dampers.
Place controller in standby and use actuator manual keys to
verify actuator travel.
65 Internal Memory fault.
Reset control
a
.
66 Internal Initialization Error.
Reset control
a
. Check the wiring and range capability for both the
CmA+- input and XmA+- input (if configured).
67 Fuel Actuator off curve (selected fuel type). Check for stuck fuel actuator and/or proper shielding on actuator
interface.
68 FGR Actuator off curve. Check for stuck FGR actuator and/or proper shielding on
actuator interface.
69 Air Actuator off curve. Check for stuck Air actuator and/or proper shielding on actuator
interface.
71 Verifies that the Air actuator accepted the off-line, on-
line, move counterclockwise and move clockwise
commands. Furthermore, all potentiometer tests
must successfully passed to bring an actuator online.
Check wiring of actuator, verify correct ID is being used. Use
Actuator LED to verify that the actuator that is being brought
“online”. A fast flash in the actuator equates to “off line” state
while a 1 second flash equates to an “online” state.
72 Verifies that the Fuel 1 actuator accepted the off-line,
on-line, move counterclockwise and move clockwise
commands. Furthermore, all potentiometer tests
must successfully passed to bring an actuator online.
Check wiring of actuator, verify correct ID is being used. Use
Actuator LED to verify that the actuator that is being brought
“online”. A fast flash in the actuator equates to “off line” state
while a 1 second flash equates to an “online” state.
73 Verifies that the Fuel 2 actuator accepted the off-line,
on-line, move counterclockwise and move clockwise
commands. Furthermore, all potentiometer tests
must successfully passed to bring an actuator online.
Check wiring of actuator, verify correct ID is being used. Use
Actuator LED to verify that the actuator that is being brought
“online”. A fast flash in the actuator equates to “off line” state
while a 1 second flash equates to an “online” state.
74 Verifies that the FGR actuator accepted the off-line,
online, move counterclockwise and move clockwise
commands. Furthermore, all potentiometer tests
must successfully passed to bring an actuator online.
Check wiring of actuator, verify correct ID is being used. Use
Actuator LED to verify that the actuator that is being brought
“online”. A fast flash in the actuator equates to “off line” state
while a 1 second flash equates to an “online” state.
75 Internal memory fault.
Reset Control
a
.
76 Internal check sum error.
Reset Control
a
82 Actuator secondary fault. Check Actuator wiring. See Channel LED for Actuator.
83 Air actuator non-responsive.
Check actuator wiring and stuck damper/valve
c
.
84 Fuel 1 actuator non-responsive.
Check actuator wiring and stuck damper/valve
c
.
85 Fuel 2 actuator non-responsive.
Check actuator wiring and stuck damper/valve
c
.
86 FGR actuator non-responsive.
Check actuator wiring and stuck damper/valve
c
.
87 Internal math error.
Reset Control
a
.
Table 7. Fault Codes and Corrective Actions. (Continued)
Fault/
Blink
Code Description Corrective Action