C&M Britony FlexiFlu - Explosive Ignition; Low Water Temperature; Burner stays on; Yellow Flames-Soot Formed

FAULT FINDING CHART FOR BRITONY FLEXIFLUE
22
P
P
R
R
O
O
B
B
L
L
E
E
M
M
C
C
A
A
U
U
S
S
E
E
R
R
E
E
M
M
E
E
D
D
Y
Y
E
E
x
x
p
p
l
l
o
o
s
s
i
i
v
v
e
e
I
I
g
g
n
n
i
i
t
t
i
i
o
o
n
n
I
I
)
)
Pilot too small Check pilot tube and injector
I
I
I
I
)
)
Slow ignition not adjusted Check and adjust (see 5.3)
G
G
a
a
s
s
c
c
o
o
n
n
t
t
r
r
o
o
l
l
t
t
a
a
p
p
s
s
t
t
i
i
f
f
f
f
I
I
)
)
Grease dried Clean and regrease
(
(
U
U
s
s
e
e
r
r
’
’
s
s
)
)
I
I
I
I
)
)
Operating mechanism replaced
i
ncorrectly Refit
L
L
o
o
w
w
W
W
a
a
t
t
e
e
r
r
T
T
e
e
m
m
p
p
e
e
r
r
a
a
t
t
u
u
r
r
e
e
I
I
)
)
Water rate too high Check water governor
I
I
I
I
)
)
Insufficient gas flow Clean rate and it user’s tap is open
I
I
I
I
I
I
)
)
Water governor sticking Remove and clean or replace (see 6.7)
I
I
V
V
)
)
Incorrect venturi Replace (3.65 mm) (see section 7.4)
V
V
)
)
Main burner injector dirty Clean or replace (see section 6.2)
B
B
u
u
r
r
n
n
e
e
r
r
s
s
t
t
a
a
y
y
s
s
o
o
n
n
I
I
)
)
Air in pipework
Check for dead legs
I
I
I
I
)
)
Gas valve stays open Clean and grease gas spindle
I
I
I
I
I
I
)
)
Dirt on gas valve facing Strip and clean gas valve
I
I
V
V
)
)
Dirt or foreign matter in water (See Section 6.6)
section
V
V
)
)
Loose jumper on house stop tap Clean water section
V
V
I
I
)
)
Check-valve fitted on supply pipe (See Section 4.1)
V
V
I
I
I
I
)
)
Slow ignition device stock Clean or replace (see Section 5.3)
Y
Y
e
e
l
l
l
l
o
o
w
w
F
F
l
l
a
a
m
m
e
e
s
s
-
-
I
I
)
)
Heating body fins blocked Remove heating body and clean (see 6.4)
S
S
o
o
o
o
t
t
F
F
o
o
r
r
m
m
e
e
d
d
I
I
I
I
)
)
Primary air supply restricted Check burner manifold and clean (see 6.2)
I
I
I
I
I
I
)
)
Wrong injectors Check injector sizes and gas rates
(see Section 1.3) technical data
U
U
n
n
s
s
t
t
a
a
b
b
l
l
e
e
F
F
l
l
a
a
m
m
e
e
I
I
)
)
Fan not switching to high speed See Section 8.6
I
I
I
I
)
)
W
ater in gas line
Drain and purge
I
I
I
I
I
I
)
)
Faulty flue Check ter
minal position and flue ducts
(see Section 3.3)
I
I
V
V
)
)
Fan assy not fitted correctly Fit fan assy correctly (see Section 7.7)
V
V
)
)
Gaskets not fitted corr
ectly Fit gaskets cor
r
ectly (see Section 3.5)
H
H
e
e
a
a
t
t
i
i
n
n
g
g
B
B
o
o
d
d
y
y
N
N
o
o
i
i
s
s
e
e
I
I
)
)
Scale
Descale heating body
I
I
I
I
)
)
Excessive gas Check gas pressure (see 1.3 and 5.2)
I
I
I
I
I
I
)
)
Insufficient water flow See section 8.15
F
F
a
a
n
n
N
N
o
o
i
i
s
s
y
y
I
I
)
)
Fan remaining at high speed See Section 8.3
I
I
I
I
)
)
Fan out of balance Replace (see 7.7)
I
I
n
n
s
s
u
u
f
f
f
f
i
i
c
c
i
i
e
e
n
n
t
t
W
W
a
a
t
t
e
e
r
r
I
I
)
)
Water service tap closed Check it is fully opened (see 3.5)
I
I
I
I
)
)
Blocked venturi
Remove and clean venturi (see 7.4)
I
I
I
I
I
I
)
)
Low water pr
essur
e
Check water pressure (see Section 1.3)
I
I
V
V
)
)
Water governor faulty Change governor
V
V
)
)
Water governor sticking Remove and clean or replace (see 6.7)
V
V
I
I
)
)
For
eign matter in water section
Remove and clean (see Section 7.4)
V
V
I
I
I
I
)
)
Water filter blocked Remove and clean/replace (see 3.5)
88..77..
88..88..
88..99..
88..1100..
88..1111..
88..1122..
88..1133..
88..1144..
88..1155..