Download Bosch DANESMOOR UTILITY 12-14 Technical data

Transcript
27
Worn motor bearings.
Replace motor.
Worn pump.
Replace.
Pump noise.
Air in pump.
Noisy operation.
Electrode
settings
incorrect.
See installation
instructions.
High tension
leads faulty.
Electrical connections
not properly
made in
control box.
Fan out of balance.
Replace fan.
External controls not
operating correctly.
Faulty boiler thermostat.
Replace if necessary.
FAULTY BOILER OPERATION
Electrodes
broken.
Open circuit
ignition.
IGNITION FAILURE
Photocell
filmed over.
Clean.
Boiler thermostat
differential incorrect.
Should be 5°C ± 2°C.
Short circuit boiler thermostat.
Take out of circuit to check.
Boiling.
BURNER FAILS TO START
Boiler rating incorrect.
If overrated heat load
satisfied very quickly.
Numerous lockouts.
Cure the lockout
condition.
Leaks at tubing connectors.
Ensure end of
tubing is secure.
Odour in boiler room.
Oil leaks pipe fittings.
Take apart and
remake if necessary.
Faulty burner
operation.
Oil soaked hearth.
OIL SMELLS
Target wall incorrectly
positioned or faulty
(where fitted).
Combustion Faulty nozzle.
Replace nozzle.
settings
incorrect.
Set up as in
installation
instructions.
Oil pressure incorrect.
Incorrect components
Adjust to recommended
used on combustion
pressure settings.
head. Check with installation
instructions.
Fumes on start-up.
Blocked flue.
Check flue with gauge.
Pulsation
on start.
Intermittent flame
detection fault.
See flame detection
fault.
PULSATION ON START
Flue draught
incorrect.
Check flue
draught.
HIGH SMOKE NUMBER
Faulty control
box. Replace
if necessary.
Incorrect combustion
settings. Readjust as in
installation instructions.
Short cycling.
Air intake blocked.
Check air intake is clear.
Programmer
open circuit.
Boiler does not respond to a call for heat.
Downdraught.
Intermittent
lockout.
Extend flue above
Fit a downdraught
eaves, or if possible cowl if flue cannot
above roof apex or
be extended.
adjacent obstructions.
Check control box
connections.
Bad electrical
connection.
Control box fault.
Replace if necessary.
Burner motor fails
to operate.
Check motor across
mains supply.
Faulty control box.
Replace if
necessary.
Thermostat bulb not fully
home in pocket.
Ensure bulb is
pushed fully home.
Boiler thermostat
faulty. Check by
linking out high
limit and control
thermostats.
Photocell
faulty.
Replace.
Flame detection fault.
Faulty nozzle.
Replace nozzle.
Faulty control box.
Replace control box.
Mechanical shut off
valve clean or
replace.
Air adjustment fault.
CO2 should be
as specified in
tables 2 to 8.
Faulty pump or
faulty pump drive.
Replace if necessary.
Filters or oil line
blocked. Check
filters from tank
to boiler and clean
if necessary.
Nozzle blocked.
Replace nozzle.
Faulty ignition
transformer.
Replace
if necessary.
Air in pump.
Bleed pump.
No oil in tank.
Check tank and
replenish if
necessary.
No oil at
oil pump.
No oil delivery
from nozzle.
Check oil supply
at oil pump.
Oil at
oil pump.
Ignition failure
To Re-set wait 2 minutes and press re-set button
INDICATED BY RED LAMP ON CONTROL BOX
LOCKOUT
16. Fault Finding