Warranty
36
│
Page
Red
LED
Remote
Malfunction
description
Diagnosis
Six
Times
51
Abnormal
Gas
Solenoid
Valve
Check for
connection/breakage
of
wires
(Part
#708)
and/or
burn
marks
on
the
computer
board
(Part
#701).
Six
Times
55
Abnormal
Main
Gas
Valve
Check for
connection/breakage
of
wires
(Part
#708)
and/or
burn
marks
on
the
computer
board
(Part
#701).
Four
Times
61
Fan
Motor
Fault
Check for
connection/breakage
of
wires,
dust
buildup
in
the
fan
motor
(Part
#103)
and/or
burn
marks
on
the
computer
board
(Part
#701).
Check
for
frozen/corrosion
of
connectors
(Part
#103).
One
Time
70
Computer
board
Fault
Check
for
connection/breakage
of
wires
(Part
#714)
and/or
burn
marks
on
the
computer
board
(Part
#701).
Check
the
power
supply
of
the
water
heater.
Six
Times
72
False
Flame
Detection
For
indoor
models,
check
if
condensate
drain
is
installed
on
the
vent
collar
of
the
water
heater.
Check
if
there
is
leaking
from
heat
exchanger
(Part
#401).
N/A
74
Miscommunication
between
Water
heater
and
remote
controller
Check
the
model
type
of
the
remote
controller.
Inspect
the
connections
between
the
water
heater
and
remote
controller.
Check
the
power
supply
of
the
water
heater.
Five
Times
99
Imperfect
combustion
Check
the
gas
type
of
the
water
heater.
Inspect
the
environment
around
the
water
heater.
Determine
how
long
the
unit
has
been
installed.
Check
the
altitude/elevation
of
the
area
of
where
the
water
heater
installed.
Check
if
there
is
any
blockage
in
the
intake
air
and/or
exhaust.
If
the
water
heater
is
installed
as
a
direct
‐
vent
system,
check
whether
there
is
enough
distance
between
the
intake
air
terminal
and
the
exhaust
terminal.
Check
if
there
is
grease
and/or
dirt
in
the
burner
(Part
#
101)
and
the
fan
motor
(Part
#
104),
especially
if
the
water
heater
has
been
installed
in
a
contaminated
area.
