Grant Vortex Boilerhouse Combi - Burner Diagnosis -Cuenod MAX 4 or MAX

11.2 BURNER DIAGNOSIS CUENOD MAX 4 OR MAX 8
Fault fi ndings
Yes
Yes
Yes
Yes
Yes
Yes Yes
YesYes
Yes
No
No
No
No
No
No No
No
Sale
Cleaned
Request for
heat received
by the boiler
control
Lock after 20s
of prepurge
Check how the
groundoid of the
pump works
Check how the flame
detector works**
Is there a
false flame
signal?
Replace the
groundoid in
the pump
Replace the flame
detector
The burner’s
engine is
running
Check that
green LED
lights up
Check the boiler
control
Influenza
engine
Blocked
pump
Replace
the engine
capacitor
Replace the
control box
Clean the
filter
Replace the
engine
Yes
Yes
No
Check the boiler
control
No
Permission of
the preheating
device
Check that
green LED
lights up
Damaged
preheating
device
Replace the
preheating
device
Check the
pump filter
Eliminate the
causes of the false
flame signal
Unlock/Replace the pump
Yes
Yes
Check the pressure loss
or the complete system
(boiler + fuel)
Yes Yes
Yes Yes Yes
Yes Yes
Yes
Yes
No No
No
No
No
No
No No
No
No
Why is it
broken?
How the ignition
spark works
Check
pump
pressure
Full sprinkler
sprayer
Correct
combustion air
setting
Correct
combustion
head setting
Recycle
Adjust
settings
Adjust
settings
Replace the
sprinkler
No
Check the main fuel
filter
Set or
replace
electrodes
Check the
ignition
electrodes
Replace the ignition
Yes
Yes
*
*
Replace the
coupling of the
workout
Clean the filter
or replace the
pump
Replace the
solenoid
Replace the
pump
Check the
pump filter
Check the
coupling of the
workout
Check the
solenoid
Does the flame
detector work well?
No
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