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Service- und Störungsanzeigen
6 720 641 801 (2010/11)
69
Vd1 566 Unterbrechung, Rück-
lauftemperatur < -5 C.
Verbindungsleitung zwischen Brennerautomat und dem
Rücklauftemperaturfühler prüfen, ggf. Leitung austau-
schen.
Elektrischen Anschluss der Verbindungsleitung am Brenne-
rautomaten prüfen, ggf. Kontaktproblem beseitigen.
Widerstandswerte nach Tabelle prüfen, ggf. Temperatur-
fühler austauschen (Æ Bild 76, Seite 76).
Spannungswerte am Temperaturfühler nach Tabelle prü-
fen, ggf. Brennerautomat austauschen (Æ Tabelle 32,
Seite 75).
567 Kurzschluss, Rücklauf-
temperatur > 130 C.
Verbindungsleitung zwischen Brennerautomat und dem
Rücklauftemperaturfühler prüfen, ggf. Leitung austau-
schen.
Elektrischen Anschluss der Verbindungsleitung am Brenne-
rautomaten prüfen, ggf. Kontaktproblem beseitigen.
Widerstandswerte nach Tabelle prüfen, ggf. Temperatur-
fühler austauschen (Æ Bild 76, Seite 76).
Spannungswerte am Temperaturfühler nach Tabelle prü-
fen, ggf. Brennerautomat austauschen (Æ Tabelle 32,
Seite 75).
Bd3 549 Sicherheitskette hat
geöffnet.
Komponenten auf Durchgang prüfen, ggf. austauschen.
-d4 564 Temperaturanstieg
Kesseltemperaturfüh-
ler zu schnell (>70K/
min).
Ausreichende Wärmeabnahme im Heizsystem sicherstel-
len.
Pumpenstufen oder Pumpenkennfelder korrekt einstellen
und auf maximale Leistung anpassen.
Pumpe prüfen, ggf. Pumpe austauschen.
Wärmeblock mit freigegebenen Mitteln heizwasserseitig
spülen/reinigen.
BE0 551 Spannungsunterbre-
chung
Netzleitung prüfen.
BE1 550 Unterspannung (< 195
Volt)
Spannungsversorgung prüfen.
Art
1)
Display-
code
Stö-
rungs-
code
Beschreibung Beseitigung
Tab. 31 Störungsanzeigen
69


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