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Three T
imes
Indicates Burner
Failure.The Control
Module Has Gone
into Safety Lockout.
Flash Pattern Begins
W
ithin 30 Seconds
After Condition
Occurs.
Is Proper Fuel
Supplied to Heater
Inlet?
Connect Proper
Gas Supply to
Heater
. Open All
Ye
s
No
Is Proper Gas
Pressure Supplied
to Heater?
Ye
s
Ye
s
Provide Proper Gas
Supply and Pressure to
Heater
. Refer to
Dat
aplate
No
No
Is Backflash
Switch T
ripped?
Check
Continuity
If Switch is T
ripped, Determine
Cause of T
ripping.
Is Ignitor
Properly
Gapped?
Is Proper
V
olt
age
Supplied to
Gas V
alve?
Defective Gas V
alve.
Replace Gas V
alve.
Ye
s
Ye
s
Ye
s
Check Igniter Gap
Regap to .10 in.
Defective Wires or
Connections. If
Good, Rplace
Ignition Control.
No
No
No
Does Ignitor
S
p
ark?
Ye
s
Is Igniter High V
olt
age
Lead Connected?
No
Is Ignitor Gap
Positioned
Properly?
No
Reposition
Igniter
.
(See Service
Instructions)
No
Connect High V
olt
age
Lead
Ye
s
A. Check High V
olt
age Lead
For Continuity and T
ight
Connections. Replace if
Defective.
B. Defective, Improperly
Gapped, or Dirty Igniter
,
Replace, Regap, or
Clean
Igniter
.
C. Rep
alce Ignition Control
Module.
21
Five T
imes
If contr
ol module does no
t reset, then replace the it (Int
ernal
boar
d f
ault.)
If module resets, then ha
v
e
q
ualif
ied electrician check po
w
e
r
sour
ce f
or po
w
er q
uality pr
oblems. (F
req
uency
, line noise, line
spik
es, loose connections, t
oo small wire gauge.)
Flame sense relat
ed pr
oblems. Check f
o
r
crack
ed or dir
ty flame sensor
, im
pr
operly
positioned sensor
, or poor flame sense gr
ound.
Four T
imes
Rapid On/Of
f
cycling of the
burner
.
Does Gas
Solenoid V
alve Open?
TRADESMAN UL
TRA
HEA
TER
Problem
Is the Heater
Properly
Grounded?
No
Ensure all
Grounds are
Connected.
Ye
s
Содержание CP155
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Страница 28: ...27 PARTS SCHEMATIC Parts Identification...