WarmFlow Utility U70HE, User Manual

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Page 60
10.0 Burner Fault Finding
10.1 Riello RDB
OK
YES
YES
YES
NO
NO
NO
YES
NO
NO NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
Bur
ner
Motor Runs
Lock Out
within
1 second
Lock Out after
12 second
pur
ge
Ignition
Spark Pr
oved
Pump
Pr
oduces
Pr
essur
e
Nozzle
A
to
m
is
in
g
Fu
el
Combustion
Air Set
Corr
ect
Combustion
Head Set
Corr
ect
Check
L & N to
Contr
ol Box
Motor or
Pump Seized
R
ep
ai
r/
R
ep
la
ce
Motor/Pump
Check and Set
the Electr
odes
W
ashing
Pr
essur
e
1-2 Bar
Solenoid
Operating
R
ai
se
P
re
ss
ur
e
Replace
Nozzle
Flame Of
f
and Re-Lights
Check
B
oi
le
r
C
on
tr
ol
s
Replace Motor
Capacitor
Replace the Contr
ol Box
Drive Coupling
Br
oken
Replace the
Coil and/or Stem V
alve
Contaminated
Fuel Filter
Boiler or Flue
Blocked
Repair or
Replace Oil
Pump
Motor gives
50 V
olts to
White Wir
e
Coil of
Solenoid
Functional
Photo Cell Functional
Replace
Contr
ol Box
If B/F
application
remove bur
ner
snorkel tube
and r
etest
Replace
Bur
ner Motor
Replace
Solenoid Coil
Replace
Photo Cell
Reset B/F Flue
or Reposition
YES
NO
YES
YES
YES
YES
YES
NO
NO
NO