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Troubleshooting

23. Troubleshooting

Observation

Cause

Remedy

Burner does not start 
up

Oil not combustible due to sludge and / or water 

Oil tank empty
Oil level in burner tank too high

Filter dirty, oil or air lines leaky
Faulty feed pump solenoid valve 

Nozzle dirty or faulty 
Feed pump blocked
No current
Motor faulty
Thermostat faulty
Photocell dirty or not correctly inserted 

Control unit faulty
No ignition

No compressed air

Solenoid valve faulty 
Compressor or air line faulty

Open the water drain cock on the burner tank, 
drain off sludge and water or 
use a higher-grade heating oil
Refill tank with oil

Correct the oil level by draining off oil by means 
of the water cock (readjust the level control 
float switch, if necessary)
Clean the filter, feed pump filter and lines
Check the feed pump solenoid valve and 
replace if necessary
Replace nozzle
Strip the feed pump and clean the gear
Switch on the heater switch
Replace
Replace
Clean the photocell, replace it or connect it 
properly 
Replace
Adjust the ignition electrode, replace the igni-
tion transformer if necessary and   check the 
ignition cable 
Connect and/or open the compressed air   and 
set the pressure
Replace
Replace

Burner starts very late

Heating cartridge and thermocouple in burner 
tank encrusted or faulty 

Clean or replace the heating cartridge and 
thermocouple in the burner tank

Burner starts without 
pre-ventilating

Solenoid valve sticking in open position

Replace

No oil feed

Solenoid valve faulty

Replace

Flame is interrupted or 
extinguishes

Oil not combustible due to sludge and / or water

Oil supply used up
Clogged nozzle
Dirty feed pump filter 
Oil line to tank frozen
Supply tank to far away from burner
Filter or oil lines dirty
Solenoid valve faulty
Too much or not enough compressed air

Safety temperature limiter is in the safety posi-
tion because the heater has overheated 
Micro-switch in burner tank cuts out

Open the water drain cock on the burner tank, 
drain off sludge and water or use higher-grade 
oil
Refill tank with oil
Replace nozzle
Clean feed pump filter
Clean oil lines, and insulate tank and oil line
Install an additional feed pump
Replace filter and clean oil lines
Replace
Check compressed air and gauge pressure 
using primary airflow control
Troubleshoot the heater and unlock the safety 
temperature limiter
Adjust the level control float 

Nozzle and baffle plate 
are heavily soiled with 
oil or soot

Incorrect baffle plate setting
Combustion airflow rate too high or too low

Boiler room is not sufficiently ventilated

Correct the baffle plate setting dimensions 
Set the primary airflow rate
Set the secondary airflow rate at the air control 
flap
Pay attention to sufficiently large ventilation 
ports 

Summary of Contents for G100 Universal

Page 1: ...G100 Universal Oil Burner Installation Maintenance Manual...

Page 2: ...ge and burner 5 10 Connecting to power supply 5 11 Compressed air connection 5 12 Oil pump 6 13 Installing the oil line 6 14 Setting the ignition electrodes 6 15 Control unit 7 16 Table of settings 8...

Page 3: ...mounting unit separate operating instructions technical information flange seal Near wear free compressed air atomising nozzles are pre fitted at the factory 3 Operating instructions This technical i...

Page 4: ...mbustion process The burner blower supplies the secondary air which is added to the atomised spray at the baffle plate This ensures full combustion and operational reliability At the oil temperature i...

Page 5: ...it as indicated in the wiring diagram HEED LOCAL REGULATIONS Use flexible wiring Overcurrent protection configuration The overcurrent protection devices must be rated for the electrical current range...

Page 6: ...adjustment 13 Installing the oil line Install oil lines filters and floating suction unit from the supply pump to the supply tank For installation in the open air or on outside walls the lines must b...

Page 7: ...llowing a mains power failure The control unit indicates a fault if an external light source is detected during the pre aeration cycle after expiration of the safety cycle The control unit may only be...

Page 8: ...deviate Adjustment is required in any case due to the system design For initial start up fill the burner tank up to the oil mark by hand Caution If the oil level is too high the float switch will swi...

Page 9: ...an be used as guide values Higher viscosity fuels require higher air pressures 18 Combustion air flow rate Setting the combustion air flow rate 2 Ideal values Soot index according to Bacharach 1 O2 4...

Page 10: ...a flue gas thermometer The higher the flue gas temperature the greater the flue gas loss Rising flue gas temperatures indicate increasing deposits that will reduce the degree of combustion effi cienc...

Page 11: ...thermostat STB H11 Ext status lamp H13 Ext fault indication lamp K1 Relay M1 Burner motor P11 Ext operating hours counter Q1 Heater power switch S1 Micro switch overflow protection S2 Level micro swit...

Page 12: ...in burner tank encrusted or faulty Clean or replace the heating cartridge and thermocouple in the burner tank Burner starts without pre ventilating Solenoid valve sticking in open position Replace No...

Page 13: ...13 E 04 2000 G 16 11 10 Exploded view drawing spare parts list 24 Exploded view drawing spare parts list ZBZ_2 278...

Page 14: ...4 x 10 x 2 50 37 50 10788 27 Solenoid valve R1 4 SV04 1 36 90 11583 27 Solenoid valve coil 1 47 90 24686 28 Thread reducing adaptor 1 4 1 8 1 47 90 11303 29 Solenoid valve oil tank connecting tube 1 4...

Page 15: ......

Page 16: ...G100 Universal Oil Burner 07 11 Enertech Limited P O Box 1 Vines Lane Droitwich Worcestershire WR9 8NA tel 44 0 1905 794331 fax 44 0 1905 794017 email info nu way co uk web www nu way co uk...

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