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Operation, indication, diagnostics (cont´d)
Diagnostics of the
cause of fault
Red blink code of
signal lamp (LED)
2 blinks
3 x blinks
4 blinks
5 blinks
6 blinks
7 blinks
8 x blinks
9 blinks
10 blinks
14 blinks
14/17
Building Technologies
HVAC Products
After lockout, the red fault signal lamp is steady on. In that condition, visual diagnostics of
the cause of fault according to the error code table can be activated by pressing the lock-
out reset button for at least 3 seconds. Pressing the reset button again for at least 3 sec-
onds activates interface diagnostics. If, by accident, interface diagnostics has been acti-
vated, in which case the slightly red light of the signal lamp flickers, it can be deactivated
by pressing again the lockout reset button for at least 3 seconds. The instant of switching
over is indicated by a yellow light pulse.
The following sequence activates the diagnostics of the cause of fault:
Lockout position
On
EK
> 3 s
Error code table
«AL» at
Possible cause
term. 10
On
No establishment of flame at the end of «TSA»
Faulty or soiled fuel valves
-
Faulty or soiled flame detector
-
Poor adjustment of burner, no fuel
-
Faulty ignition equipment
-
On
«LP» faulty
- Loss of air pressure signal after «t10»
- «LP» welded in normal position
On
Extraneous light when burner startup
On
Time out «LP»
- «LP» welded in working position
On
Free
On
Too many losses of flame during operation (limitation of repetitions)
Faulty or soiled fuel valves
-
Faulty or soiled flame detector
-
Poor adjustment of burner
-
On
Free
On
Free
Off
Wiring error or internal error, output contacts, other fault
On
CPI contact not closed
During the time the cause of fault is diagnosed, the control outputs are dead.
Burner remains shut down
-
External fault indication remains deactivated
-
Fault status signal «AL» at terminal 10, according to the error code table
-
The diagnostics of the cause of fault is quit and the burner switched on again by resetting
the burner control. Press the lockout reset button for about 1 second (<3 seconds).
Lockout position
Visual diagnostics
Flashing
EK
Error code table
> 3 s
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
Lockout position
Interface diagnostics
PC / analyzer
Reset
EK
< 3 s
CC1N7106en
20.02.2008
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