106636-02 - 12/19
37
X-2
Installation, Operating & Service Manual
6 . Circulator is On, Damper is Open But Boiler Fails to Start
Display / Status
Description
STA 10
Retry / Recycle
Delay
Boiler is in “Retry Delay”:
- Burner failed to light (no flame signal). After a 5 minute delay, Control will attempt to light the
burner again. There is no limit to the number of retries.
Recycle Delay
- Burner loses flame during running mode, (“
STA 8
”). After a 10 second delay, Control will attempt
to light burner again. If burner loses flame during running mode, “
STA 8
” during the next six
recycles, Control will progress to a soft lockout.
STA 13
Soft Lockout
When a soft lockout occurs, boiler will shut down. Boiler automatically restarts once condition that caused the
lockout is corrected and one-hour time delay is completed. Boiler can be restarted sooner than time delay by using
Adjustment Mode and selecting reset button (see Adjustment Mode instructions) or by cycling power. Soft Lockout is
caused by one of following:
-
Err 63
, Maximum Recycles Exceeded – Burner lost flame during running mode, “
STA 8
” six times
in a row. Refer to recommended corrective actions on next page to help determine cause of problem.
-
Err 64
, Internal Failure, refer to Error code listing for recommended corrective action.
-
Err 23
, Flame sensed during pre-purge (before gas valve signaled open). Check gas valve
for proper operation. Replace gas valve if problem persists.
STA 14
Hard Lockout
When a hard lockout occurs, boiler shuts down.
STA 16
Flame Out of
Sequence
If flame is detected in pre-purge, Control goes to Flame Out of Sequence Before trial, “
Sta 16
” and “
rr 23
” is
reported. Control gives a flame 10 seconds to disappear. If flame goes away, control resumes heating cycle from the
beginning. If it doesn’t, “
rr 23
” is cleared and “
rr 6
” is reported. When flame is off, control goes to Soft Lockout
and “
rr 6
” is cleared. Check gas valve for proper operation.
5 . Circulator is On But Damper is Not Open
Display / Status
Recommended Corrective Action
STA 20
Damper Failed
to Open
Control is waiting for damper to open. Damper end switch has failed to close (end switch contact is stuck open).
Combustion can never take place unless damper blade is in the fully open position. Check following:
- During status “
STA18
" or “
STA 20
”, control terminal “P6 - 5” (yellow wire) is energized.
- Check for loose connection between control and vent damper, check damper harness.
- Check for obstruction in path of damper
- When damper is open (end switch closed), control terminal “P6 – 2” should receive power from vent damper.
- Place jumper between control terminal P6-5 and P6-2. If error 55 does not clear, replace control.
- Defective harness or vent damper.
14
Troubleshooting
(continued)
