Roberts Gorden CoRayVac CRV-B-9 - Manual (Page 61)

SECTION 15: T ROUBLESHOOTING
55
SECTION 15: TROUBLESHOOTING
15.1 Troubleshooting Flow Chart
W
rong end v
ent plat
e ma
y
be inst
alled.
Mak
e sur
e plat
e
and b
ur
ner match.
Is the v
acuum set
ting
too high?
Ye
s
Adjust s
ys
tem f
or pr
oper
vacuum at the end v
ent.
Is the pump impeller
obstr
uct
ed?
No
Mot
or bear
ings ma
y ha
ve
failed.
R
eplace mot
or
.
Is the mot
or connect
ed pr
oper
ly
?
R
ef
er t
o the w
iring diag
rams on the
mot
or and in the inst
allation man
ual.
Mot
or ma
y ha
ve tr
ipped
ov
er
load s
w
itch.
W
ait 1
0-1
5
min
ut
es f
or aut
omatic r
eset.
No
Disconnect po
w
er t
o the
mot
or
. Does the mot
or
tur
n fr
eel
y?
No
Is the mot
or hot?
No
Ye
s
R
eplace b
ur
ner tr
ansf
or
mer
.
R
eplace ignition module
.
Is ther
e 24V at the b
ur
ner
transf
or
mer secondar
y (b
lue
and y
ello
w w
ires)?
Ye
s
No
Tr
oub
leshoot Ends
Pr
e-pur
ge
. W
ait 45 seconds
.
Do the b
ur
ner
s light?
Chec
k LED on module and
re
fer t
o LED codes belo
w
.
Ye
s
No
C
orr
ect g
as pr
ob
lem.
Chec
k w
iring t
o the b
ur
ner
.
Mak
e sur
e the b
ur
ner is
plugged in.
Chec
k ther
most
at w
iring and
re
place ther
most
at if
necessar
y.
No
Do
all
the
bu
rner
s
ignit
e
smoothl
y?
No
Ye
s
Chec
k cir
cuit br
eak
er and/or
fuse on panel suppl
y cir
cuit.
R
ef
er t
o contr
ol
panels list
ed belo
w
.
Does pump tur
n on?
Ye
s
Is ther
e po
w
er (1
20V) t
o
the contr
ol?
(panel or r
ela
y)
Ye
s
No
ST
AR
T
No
Chec
k f
or pr
oper v
acuum
at end v
ent.
Unplug the b
ur
ner
, w
ait 1
0
seconds
, then plug it in
ag
ain.
Does the ignition
module begin ignition sequence b
y spar
king?
Is ther
e pr
oper g
as pr
essur
e
and f
lo
w t
o the b
ur
ner
s?
Ye
s
No
No
Ye
s
Is
ther
e
po
w
er
(1
20V)
at
the
bu
rner r
ecept
acle?
No
Ye
s
R
ef
er t
o contr
ol
panel list.
No
Ye
s
R
ef
er t
o contr
ol panel
man
uals list.
Is ther
e po
w
er t
o the z
one?
Af
ter 45 seconds pr
e-pur
ge
per
iod, do the b
ur
ner
s light?
No
Tu
rn up ther
most
at.
Does the pump tur
n on?
No
Ye
s
Ye
s
Module Dia
gnostic Codes:
LED
Pr
ob
lem
Solution
4 second st
eady
flash at st
ar
t of c
ycle
Nor
mal
W
ait f
or v
al
ve t
o open
St
eady on
Micr
opr
ocessor f
ailur
e
R
eplace module
w
ithin module
Thr
ee f
lashes
Ignition loc
kout
R
ec
ycle unit:
chec
k f
or
Loc
kout of module
spar
k and v
al
ve opening and
af
ter 3 tr
ies
re
place:if none
, r
eplace module