20140894
40
GB
Faults - Possible causes - Solutions
9
Faults - Possible causes - Solutions
FAULT
PROBABLE CAUSE
SUGGESTED REMEDY
The burner does not start
- No electrical power supply
Close all switches - Check fuses
- A limit or safety control device is open
Adjust or replace
- Control box lockout
Reset control box
- Motor lock-out
Reset thermal cutout
- Pump is jammed
Replace
- Erroneous electrical connections
Check connections
- Defective control box
Replace
- Defective motor command control device
Replace
- Defective electrical motor
Replace
- Sensor short-circuit
Replace sensor
- Light is entering or flame is simulated
Eliminate light or replace control box
The burner starts but stops almost immediately - Missing phase (NO PRESS GW) thermal cutout triggers
Reset thermal cutout when third phase returns
After pre-purge the burner goes to lock out and
the flame does not appear
- No fuel in tank; water on tank bottom
Top up fuel level or suck up water
- Inappropriate head and gate valve adjustments
Consult Manual
- Gas oil solenoid valve fails to open
Check connections; replace coil
- Nozzle clogged, dirty, or deformed
Replace
- Dirty or poorly adjusted firing electrodes
Adjust or clean
- Grounded electrode due to broken insulation
Replace
- High voltage cable defective or grounded
Replace
- High voltage cable deformed by high temperature
Replace or protect
- Firing transformer defective
Replace
- Erroneous valve or transformer electrical connections
Check
- Control box defective
Replace
- Pump unprimed
Prime pump and see “Pump unprimes”
- Pump/motor coupling broken
Replace
- Pump suction line connected to return line
Correct connection
- Valves up-line from pump closed
Open
- Filters dirty: line - pump - nozzle
Clean
- Incorrect motor rotation direction
Change motor electrical connections
- 1st stage sol. valve coil defective
Replace
- Presence of electromagnetic disturbance
Use the radio disturbance protection kit
The burner goes to lock out right after flame
appearance
- Delayed firing by electrodes or poorly adjusted head
Adjust
- Defective sensor or control box
Replace
- Dirty sensor
Clean
Firing with pulsations or flame detachment
- Poorly adjusted head
Adjust according to Manual
- Poorly adjusted firing electrodes
Adjust according to Manual
- Poorly adjusted fan air gate: too much air
Adjust
- Nozzle unsuited to burner or boiler
See Nozzle Table; reduce 1st stage
- Defective nozzle
Replace
- Inappropriate pump pressure
Adjust according to Manual
The burner does not pass to 2nd stage
- Control device TR does not close
Adjust or replace
- Defective control box
Replace
- 2nd stage sol. valve coil defective
Replace
- Piston jammed in valve unit
Replace entire unit
or fuel passes to 2nd stage but air remains in
1st
- Low pump pressure
Increase
- Defective cylinder
Replace
Uneven fuel supply
- Check if cause is in pump or fuel supply system
Feed burner from tank located near burner
Internally rusted pump
- Water in tank
Suck water from tank bottom with separate pump.
Noisy pump, instable pressure
- Air has entered the suction line
Tighten connectors
- Depression value too high (higher than 35 cm Hg):
- Tank/burner height difference too great
Feed burner with loop circuit
- Piping diameter too small
Increase
- Suction filters clogged
Clean
- Suction valves closed
Open
- Paraffin solidified due to low temperature
Add additive to gas oil
Pump unprimes after prolonged pause
- Return pipe not immersed in fuel
Bring to same height as suction pipe
- Air enters suction piping
Tighten connectors
Pump leaks gas oil
- Leakage from sealing organ
Replace pump
Содержание PRESS 1G
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