Specifications
SECTION
G
PROTECTIVE
FEATURES
LOSS
OF
POWER-AUTOMATIC
RESET:
NOTE:
If
power
to the
heater
is
interrupted,
a
thud-like
noise
may be
heard
in the
combustion
chamber.
This
is
normal,
and
should
not
cause
alarm.
For
power interruptions
of up to 5
minutes,
the
set
memory
is
kept
and
will resume operation
automatically
with
the set
memory.
For
power interruptions beyond
5
minutes, your
heater
will
resume operation
(after
a 6
minutes
cool down period)
in the
MANUAL mode
and
maintain room temperature
according
to the
setting
temperature you've selected
by
using
the
slide
selector
for the
reset temperature
at the
lower
right hand side
of the
cabinet
(Figure
19).
When
the
TIME
Button
is
pressed
or the
TIMER
SELECTOR
Button
is
pressed
to
illuminate
the
CLOCK
SET
Light,
The
Display Window will
show
88 : 88
indicating
the
need
to
reset
the
clock
and
re-program
the
heater
for
automatic
operation.
REMARK:
In
order
to
display
reset
temperature,
it
should
be set
before
the
heater
is
plugged
in
and
energized.
New
reset
temperature selected
after
plugged
in
will
take
effect
only after
a
power loss, greater
than
five
minutes.
RESET
TEMPERATURE
50
52 54 56 58 60 62 64 66 68 70 72 74 76 78 80
(TO.
Fig.
19
ELECTRICAL
FUSE
In
the
unlikely event
of a
failure
in the
heater's electrical
system,
a
fuse will
"blow"
and
interrupt
the
power.
Do
not
attempt
to
change
the
fuse.
Contact your
MPI
dealer
for the
name
of a
trained
and
certified service representative
in
your area.
NOTE:
Using
a
surge
protector
can
minimize
the
chances
of a
blown
fuse
or PCB
failure
caused
by
power
surges.
OVERHEAT
PREVENTION
If
your heater overheats,
a
thermostatic switch will
automatically
stop
the
flow
of gas and
extinguish
the
flame.
The
Burner status
indicators
are
blinking.
Restore heater operation
by
following
the
steps below.
NOTE:
Other symptoms listed
in the
trouble shooting
chart
may
cause burner status indicators
to
blink,
besides
an
overheat
situation.
Step
1:
Turn
the
Heater
Off
Press
the
Operation
Button
to put it in the
"Off" position.
Step
2:
Allow
the
Heater
to
Cool
Wait approximately
30 to 45
minutes
for the
heater
to
cool completely.
Step
3:
Unplug
the
Heater
from
the
Wall
Outlet.
Step
4:
Remove
Obstructions
The
overheated
condition
may be
caused
by
obstructions
blocking
the air
flow
to the
heater.
Check:
• The
front
of the
heater.
• The
circulation
fan (on the
back
of the
heater).
• The
flue
pipe
(outside).
Step
5:
Remove
the
Louver
Remove
the
screws
at the
louver,
and
carefully remove
the
louver (Figure 20).
Louver
Remove
any
accumulation
of
dust
or
other matter that
may
be
covering
the
burn chamber
and the
heat
exchangers inside
the
heater.
Step
6:
Replace
the
Louver
Step
7:
Plug
in the
Heater
Step
8:
Re-program
the
Heater
Step
9:
Turn
Heater
On
fi\CAUTION:
If
the
unit
overheats
a
second
time,
turn
it
off
and
contact
your
MPI
dealer
for
service.
20