60
Read
flue g
as tem
per
ature o
n U
ser
Inter
fac
e.
Is tem
per
ature h
igher
than
2
00°F ?
YES
NO
Boiler
is o
ver
fir
ed. W
ait fo
r
boiler
to cool. F
ix fl
ow r
ate
problem
if an
y, p
urging al
l
air o
ut o
f t
he s
ystem
.
Replac
e F
lue Gas Sen
sor
Replac
e Co
ntrol M
odule
Use t
her
mal c
ouple t
o m
eas
ure fl
ue g
as
tem
per
ature t
hrough sam
pling port.
Is the m
eas
ured tem
per
ature an
d flue
tem
per
ature r
ead
ing on U
ser
I
nter
fac
e
significan
tly differen
t?
YES
NO
Blocking Error
Flue Gas Error
13 - TROUBLE SHOOTING
E
39
PN 240011320 Rev. G 10/01/2021]