Page 8
BCS3000M-9
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Pilot or main burner
flame failure.
3 second spark timer
fault.
Verify pilot and main burner settings.
Verify operation of 2TR relay (replace
2T timer).
Fuse 7 blown.
Exhaust Fan fault has
occurred.
Check for 120Vac at fuse 7 (replace
fuse).
Latched on if an exhaust fan fault
occurs. Check the exhaust fan flow
limit switch (120Vac on terminal 12)
and motor starter interlock contact
(120Vac on terminal 13)
Combustion Air fault
has occurred.
Latched on when a combustion air
fault has occurred. For EcoStar
II
:
Check the secondary air interlock
contact (120Vac on terminal 14) and
the secondary air pressure switch
(120Vac on terminal 16)
For StarJet & EcoStar: Check the
secondary air interlock contact
(terminal 14), the primary air interlock
(terminal 15), the primary air or
compressed air pressure switch
(terminal 15A) and the secondary air
pressure switch (terminal 16)
Low gas pressure fault.
Check the low gas pressure limit
switch (120Vac on terminal 16A)
!
High gas pressure fault.
Check the high gas pressure limit
switch (120Vac on terminal 18)
"
Low oil pressure fault.
Check the low oil pressure limit switch
(120Vac on terminal 17D)
"
High oil pressure fault.
Check the high oil pressure limit switch
(120Vac on terminal 17A)
#
"
Atomizing or
compressed air fault.
Check the low compressed air supply
pressure limit (terminal 17B) and the
low atomizing air pressure limit switch
(terminal 17C)
"$
!
Low or high oil
temperature
Check the low oil temperature limit
(120Vac on terminal 17E) and the high
oil temperature limit (terminal 18).