CHAPTER6
TROUBLE SHOOTING
CHAPTER
6
TROUBLE SHOOTING
A Burner
Does
Not Start
B.
No Ignition
C. Pilot Flame, But No Main Flame
D. Burner
Stays in Low Fire
E.
Shutdown Occurs During Firing
F.
Modulating Motor
!WARNING
Trouble
shooting
should be per-
formed
only
by
personnel who
are
familiar with the equipment
and who have read and under-
stand
the
contents
of
this
manual.
lfyou
have
questions,
contact
your
local
Cleaver-
Brooks
authorized
Repre-
sentative
for
assistance. Failure
to heed
this
warning could result
In
serious
personal
injury
or
death.
!WARNING
Disconnect and lock
out
the main
power
supply
in order
to
avoid
the hazard
of
electrical shock,
which could result in serious per-
sonal injury
or
death.
750-150
NOTE:
If
your boiler is equipped with a
CB-HA
WKTM
boiler
manage-
ment control system, refer to CB-
HA
WK.
Installation, Operating
and
Ser\ricing Manual No. 750- .
133
for
specific
information
regarding procedures described
in
this section.
This section assumes that the unit has been
properly installed and adjusted, and that
it
has
been running for some time. It
is
further assumed
that the operator has become thoroughly familiar
with both the burner and the manual by this time.
The points under each heading are set down
as
briefly
as
possible causes, suggestions
or
clues
to
simplify locating the source
of
trouble. Methods
of
correcting the trouble, once
it
has been iden-
tified, may
be
found elsewhere
in
this manual.
If
the burner will not start
or
if
it will not operate
properly, this trouble shooting section should
be
referred to for assistance in pinpointing problems
that may not
be
readily apparent.
The program relay has the capability
to self-diag-
nose and to display a code or message that indi-
cates the failure condition. Refer to the control
bulletin for specifics and suggested remedies.
CHAPTER
6--1
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