Frank FH 1021 TS, Operating Instructions Manual

Page: 36 / 44

36
Trouble Possible cause What to do about it
Burner fails to switch
on or switches off
during operation
Lack of water Provide sufficient water supply
Lack of fuel oil Refill fuel oil
Burner fails to light or
only with difficulty, bur-
ner is sooting, burner
causes inadmissible
emissions
Wrong burner nozzle Have an expert replace or clean
burner nozzle resp., (see also
6.4.2 and special dimensioned
drawing incl. technical specifi-
cations).
Burner nozzle dirty
No spark Have an expert check ignition
transformer and cable; replace
if necessary
Electrodes not in correct posi-
tion; sparks may reach burner
nozzle or baffle
Have an expert adjust elec-
trodes (see special dimensi-
oned drawing)
Faulty fuel oil preheater Have an expert replace fuel oil
preheater
Solenoid valve fails to open Have an expert check solenoid
valve, and replace if necessary
Regulating thermostat does not
work
Have an expert check regula-
ting thermostat, and replace if
necessary
Air values not correct Have an expert adjust air
throttle (see also special dimen-
sioned drawing)
Combustion chamber or hea-
ting oil contaminated
Have an expert clean heating
coil (see also 6.3)
Burner settings incorrect Have an expert adjust the
correct values on burner (see
special dimensioned drawing)
Heating performance
of the water heater
too low
Combustion chamber or hea-
ting coil contaminated
Have an expert clean heating
coil (see also 6.3)
Heating coil coated with lime Have an expert delime heating
coil (see also 6.2)