FAULT FINDING CHART FOR BRITONY FLEXIFLUE
22
P
PR
RO
OB
BL
LE
EM
M
C
CA
AU
US
SE
E
R
RE
EM
ME
ED
DY
Y
E
Ex
xp
pllo
ossiiv
ve
e IIg
gn
niittiio
on
n
II))
Pilot too small
Check pilot tube and injector
IIII))
Slow ignition not adjusted
Check and adjust (see 5.3)
G
Ga
ass cco
on
nttrro
oll tta
ap
p ssttiiffff
II))
Grease dried
Clean and regrease
((U
Usse
err’’ss))
IIII))
Operating mechanism replaced
incorrectly
Refit
L
Lo
ow
w W
Wa
atte
err T
Te
em
mp
pe
erra
attu
urre
e
II))
Water rate too high
Check water governor
IIII))
Insufficient gas flow
Clean rate and it user’s tap is open
IIIIII))
Water governor sticking
Remove and clean or replace (see 6.7)
IIV
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
Bu
urrn
ne
err sstta
ay
yss o
on
n
II))
Air in pipework
Check for dead legs
IIII))
Gas valve stays open
Clean and grease gas spindle
IIIIII))
Dirt on gas valve facing
Strip and clean gas valve
IIV
V))
Dirt or foreign matter in water
(See Section 6.6)
section
V
V))
Loose jumper on house stop tap
Clean water section
V
VII))
Check-valve fitted on supply pipe
(See Section 4.1)
V
VIIII))
Slow ignition device stock
Clean or replace (see Section 5.3)
Y
Ye
ellllo
ow
w F
Flla
am
me
ess--
II))
Heating body fins blocked
Remove heating body and clean (see 6.4)
S
So
oo
ott F
Fo
orrm
me
ed
d
IIII))
Primary air supply restricted
Check burner manifold and clean (see 6.2)
IIIIII))
Wrong injectors
Check injector sizes and gas rates
(see Section 1.3) technical data
U
Un
nsstta
ab
blle
e F
Flla
am
me
e
II))
Fan not switching to high speed
See Section 8.6
IIII))
Water in gas line
Drain and purge
IIIIII))
Faulty flue
Check terminal position and flue ducts
(see Section 3.3)
IIV
V))
Fan assy not fitted correctly
Fit fan assy correctly (see Section 7.7)
V
V))
Gaskets not fitted correctly
Fit gaskets correctly (see Section 3.5)
H
He
ea
attiin
ng
g B
Bo
od
dy
y N
No
oiisse
e
II))
Scale
Descale heating body
IIII))
Excessive gas
Check gas pressure (see 1.3 and 5.2)
IIIIII))
Insufficient water flow
See section 8.15
F
Fa
an
n N
No
oiissy
y
II))
Fan remaining at high speed
See Section 8.3
IIII))
Fan out of balance
Replace (see 7.7)
IIn
nssu
uffffiicciie
en
ntt W
Wa
atte
err
II))
Water service tap closed
Check it is fully opened (see 3.5)
IIII))
Blocked venturi
Remove and clean venturi (see 7.4)
IIIIII))
Low water pressure
Check water pressure (see Section 1.3)
IIV
V))
Water governor faulty
Change governor
V
V))
Water governor sticking
Remove and clean or replace (see 6.7)
V
VII))
Foreign matter in water section
Remove and clean (see Section 7.4)
V
VIIII))
Water filter blocked
Remove and clean/replace (see 3.5)
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8..7
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8..
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9..
8
8..1
10
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8
8..1
11
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8
8..1
12
2..
8
8..1
13
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8..1
14
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8
8..1
15
5..