Installation Guide

27
5. Circulator is On, Damper is Open But Boiler Fails to Start
LED / Status Description
- POWER
- TSTAT/CIRC
- LIMIT
- DAMPER
Retry / Recycle
Delay
The Boiler is in “Retry Delay”:
- The burner failed to light (no ame 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
- The burner loses ame during running mode. Immediately, Control will attempt to light the burner again.
If ame is lost 5 times within the same call for heat, the control locks out for one hour before retrying
ignition.
4. Circulator is On But Damper is Not Open
LED / Status Recommended Corrective Action
- POWER
- TSTAT/CIRC
- LIMIT
Damper Failed
to Open
The control is waiting for the damper to open. Damper end switch has failed to close (end switch contact is
stuck open). Combustion can never take place unless the damper blade is in the fully open position. Check
the following:
- Conrm if 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 the vent
damper.
- Place jumper between control terminal P6-5 and P6-2. If DAMPER LED does not light, replace control.
- Defective harness or vent damper.