Technical data
8
8.5
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
FAULT FINDING CHART FOR BRITONY II FF
PROBLEM
CAUSE
REMEDY
Explosive Ignition
i) Pilot too small
ii) Slow ignition not adjusted
Check pilot tube and injector
Check and adjust (see 5.3)
Gas control tap stiff
(User’s)
i) Grease dried
ii) Operating mechanism replaced
incorrectly
Clean and regrease
Refit
Low Water Temperature
i) Water rate too high
ii) Insufficient gas flow
iii) Water governor sticking
iv) incorrect venturi
v) Main burner injector dirty
Check water governor
Check rate and if user’s tap is open
Remove and clean or replace (see 6.7)
Replace (3.65 mm) (see Section 7.4)
Clean or replace (see Section 6.2)
Burner stays on
i) Air in pipework
ii) Gas valve stays open
iii) Dirt on gas valve facing
iv) Dirt or foreign matter
in water section
v) Loose jumper on house
stock cock tap
Check for dead legs
Clean and grease gas spindle
Strip and clean gas valve (see Section 6.6)
Clean water section
Replace water stop tap or pin
down jumper
Yellow Flames -
Soot Formed
i) Heating body fins blocked
ii) Primary air supply restricted
iii) Wrong injectors
Remove heating body and clean (see 6.4)
Check burner manifold and clean (see 6.2)
Check injector sizes
Unstable Flame
i) Water in gas line
ii) Faulty flue
Drain and purge
Check terminal position and flue ducts
(see Section 3.31
Heating Body Noise
i) Scale
ii) Excessive gas
iii) Insufficient water flow
Descale heating body
Check gas pressure (see 1.3 and 5.2)
See below
Fan Noisy
i) Fan remaining at high speed
ii) Fan out of balance
a) Check micro-switch operation (see 5.4)
b) Adjust micro-switch (see 7.13)
Replace (see 7.7)
Insufficient Water
i) Water service tap closed
ii) Blocked venturi
iii) Low water pressure
iv) Water governor faulty
v) Water governor sticking
vi) Foreign matter in water section
vii) Water filter blocked
Check it is fully opened (see 3.5)
Remove and clean venturi (see 7.4)
Check water pressure (see Section 1.3)
Change governor
Remove and clean or replace (see 6.7)
Remove and clean (see Sectlon 7.4)
Remove and clean/replace (see 3.5)
23