ermaf GP 120, Руководство по эксплуатации

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GB-11
D
GB
F
NL
I
E
? LED 5 flashes.
OFF
AUTO
+AUTO
1
2
3
4
5
! Signal from safety temperature limiter (STL).
Temperature has been exceeded.
• No fan run-on due to soiling. Clean, see page 12
(Maintenance).
! Fan defective.
• Check function of fan.
? LEDs 4 and 5 flash.*
OFF
AUTO
+AUTO
1
2
3
4
5
! Signal from safety temperature monitor (STM).
Temperature has been exceeded.
•
Leave heater to cool down for longer.
• No fan run-on due to soiling. Clean, see page 12
(Maintenance).
? LEDs  and 5 flash.*
OFF
AUTO
+AUTO
1
2
3
4
5
! During three consecutive restarts, the gas pres-
sure switch has tripped during the safety time
or flame proving period (gas pressure switch
oscillates).
•
Inlet pressure fluctuates. Establish stable gas
supply.
• Gas pressure p
G
too low. Readjust gas pres-
sure p
G
, see page 6 (Adjusting the heater).
? LEDs  and 5 flash.
OFF
AUTO
+AUTO
1
2
3
4
5
! Incorrect flame signal through conductive ce-
ramic insulation, e.g. surge via PE wire, possible.
• Remedy incorrect flame signal. Replace ionization
electrode and, if necessary, the BCU as well.
? LEDs  and 5 flash.*
OFF
AUTO
+AUTO
1
2
3
4
5
! Temperature sensor is not functioning correctly.
• Check the temperature sensor connection.
• Temperature sensor is below -20°C.
! Temperature sensor defective.
• Replace the temperature sensor.
? LEDs  and 4 flash.*
OFF
AUTO
+AUTO
1
2
3
4
5
! The time (cycle lock) between two starts is too
short.
• The BCU ensures there is a pause of 15 s be-
tween the starts. This warning is displayed during
this time.
? LEDs  and 4 flash.*
OFF
AUTO
+AUTO
1
2
3
4
5
!
The flame has gone out during operation. If a
restart has been programmed, an automatic re-
start is carried out provided that the burner has
been in operation for at least 2 s beforehand.
• Poor flame signal due to incorrect burner ad-
justment. Readjust gas pressure p
G
, see page 6
(Adjusting the heater).
• Poor flame signal due to dirty or badly connected
ionization electrode. Clean the ionization elec-
trode and check for correct distance, see page 12
(Maintenance).
• Check the cable connection for damage or mois-
ture. The plug must be fitted correctly.
• Check the yellow and green burner ground cable
for corrosion and to ensure it is firmly connected.