throughput or uneven and
spray pattern.
Technical Data).
(b) at initial firing.
Air in supply line.
Purge at pump to remove.
Blocked flue ways.
Clean boiler and flue.
8.
Burner locks out on
morning starts then runs
perfectly for rest of day.
Localised low voltage supply
in early morning.
Check with local Electricity Board to fit
recorder. Enlist aid of the Board
Air present in oil supply.
Restart burner several times - press lockout
reset button repeat 7(b) above.
Bottom of oil tank below
level of oil pump from tank.
Raise tank or install a two pipe oil supply.
Non-return valve faulty or air
leak in two pipe oil supply
system.
Renew non-return valve. Rectify air leak.
9.
Burner fails due to blown
fuse.
Short circuit in wiring.
Inspect wiring, sheathing and inter
component connections for broken or
damaged leads. Replace if necessary.
Motor seized.
Check by hand and replace if necessary.
Breakdown of insulation of
motor windings.
Replace motor.
10.
Burner runs normally but
will not reach desired
temperature.
Oil throughput insufficient.
Check nozzle size and pressure against
rating.
Boiler has become
undersized due to heating
system expansion.
Check with heating installer.
Low efficiency and C02.
Check combustion readings, reset air.
Low efficiency due to high
flue gas temperature.
Clean heat exchanger surfaces.
Faulty boiler stat. Partially
blocked filter.
Replace, check and clean.
11.
Poor combustion
readings.
Low C02.
Check: C02, oil pressure, nozzle size
(see
Technical Data).
High C02.
Check: C02, oil pressure, nozzle size (
see
Technical Data).
High smoke.
Check: C02, oil pressure, nozzle size
(see
Technical Data).
Check all baffles are in place and correctly
located.
High flue gas temperature.
Check: air shutter, nozzle size
(see
Technical Data)
, clean heat exchanger
surfaces.
12.
Oil odour.
Leaking joints.
Break all leaking joints and re-make.
13.
High operating
temperature.
Control stat failed and
operating on limit stat.
Replace control stat and reset Limit
Thermostat.
14.
Fumes in Boiler Room.
Inadequate draught due to
unsatisfactory chimney or
blockage of boiler flue ways
or flue pipe.
Take necessary corrective action.
15.
Unstable flame, some
Air damper on burner
Set up burner as for commissioning using oil
Page 51 of 57
Installation & maintenance manual for Camray 5 Combi External Boilers
14/04/2005
file://D:\PL61500\PL61500.htm
