Troubleshooting - Dovre 250DV Installation Et Mode D'emploi

6.

Troubleshooting

symptom
x
x
x
x
x
x
x
x
x x
x
x
x
x
x
x
x
x
x
x
250DV
possible cause
High tension lead loose
HT lead shorting out on burner body
Electrode broken
Faulty piezo-igniter
No gas
Air in tubes
x Gas pressure too high
x Gas pressure too low
x Pilot jet or tubing blocked
Incorrect pilot jet
Thermocouple insufficiently hot
x Thermocouple not in pilot-flame
Sooting of thermocouple
x Faulty thermocouple
x Faulty safety valve
x Blocked tubing or burner jet
Burr on burnet jet
Partly blocked burner
Gas leak
x x Blocked vent system
x Appliance is leaking
x Dust on appliance
(*) = must be carried out by
Check connection (*)
Establish where spark is occuring and
insulate or re-route lead accordingly (*)
Replace electrode (*)
Replace piezo (*)
Open gas supply
Be patient until air is replaced by gas
Re-adjust supply pressure or call gas -
supply company (*)
Check for possible obstruction of gas
supply tube, re-adjust supply pressure
or call gas -supply company (*)
Clean tubes or pilot jet (*)
Place correct pilot jet (*)
Wait a moment to heat thermocouple
Put thermocouple in correct position(*)
Clean thermocouple
Replace thermocouple (*)
Replace safety valve (*)
Clean tubes and burner jet (*)
Remove burr (*)
Clean burner (*)
Look up leak and rectify (*)
Control and clean (*)
Look up and rectify (*)
Remove dust
- 27 -
possible remedy
qualified engineer
03.27988.000