Repairs - SBM SX Series Installer's Instructions

5. REPAIRS


No spark
Check RP3 -RP32 fuse
Check screw tightness
of prewired plug
Check igniter :
- wire
- ceramic
- distance between
earth- pin and igniter
( 5 mm )
- connection to
BA block
Replace BA block
ONE HEATER IS NOT
HOT ENOUGHT (<850°C)
(OR STUTTERING FLAME)
Check cleanness of :
- regulator/governor
inlet gas filter
- heater inlet gas filter
- injector(s)
- heater
Heater operating with
a fixed
regulator/governor
Replace the
regulator/governor
Problems on a single heater.
ONE HEATER
DOES NOT LIGHT
Spark
Check individual valve
(open?)
Check gas flow throught
the injector block
(«click» ?)
«click»
Check cleanness of :
- regulator/governor
gas inlet filter
- heater gas inlet filter
- injector(s)
Heater operating with
an adjustable
regulator/governor
Check injection pressure
to pressure test point
(see pages 2 and 3)
If adjusting is
impossible, check
regulator/governor
inlet pressure
If regulator/governor
inlet pressure is
correct, replace
regulator/governor
No «click»
Replace BA block and
(or) injector block
ONE HEATER IS
TOO HOT (>950°C)
Heater operating with
a fixed
regulator/governor
Replace the
regulator/governor
regulator
ONE HEATER LIGHTS
AND GOES OUT AFTER
45 seconds
Check that
thermocouple is
properly tightened
Replace thermocouple
Replace injector block
Heater operating with
an adjustable
regulator/governor
Check injection pressure
to pressure test point
(see pages 2 and 3)
If adjusting is
impossible, replace
the regulator/governor
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