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38 Installatie-instructie Nefit Economy VR 24 en VRC 24/CW4 • uitgave 07/2005
Nefit B.V. • www.nefitdealer.nl Wijzigingen op grond van technische verbeteringen voorbehouden!
Display- en servicecodes8
Vervolg storingsmeldingen
displaycode servicecode bedrijfstoestand toestel oorzaken
1C
Aansluiting voor rookgas thermostaat is open. 48/49
3A
De luchtdrukverschilschakelaar opent tijdens branden (VRC 24). 18/19
3C
De luchtdrukverschilschakelaar sluit niet binnen 5 minuten na aanvang warm-
tevraag.
18/19
4A
De aanvoersensor is te warm (>100 °C). 12/13/14
4C
De cv-aanvoertemperatuur is hoger dan 105 °C.
De maximaalthermostaat is geopend.
12/13/15
16/20/21
4C
Zekering F2 defect. 22
4H
Toestel in bedrijf voor warmwater door druppelende warmwaterkraan. 47
4U
De aanvoersensor is kortgesloten. 8/23
4y
De aanvoersensor maakt geen kontakt. 8/24
5A
UBA vergrendeld. 33
5y
UBA vergrendeld. 33
6A
Er treedt geen ionisatie op na ontsteekfase, de gloeiplug werkt niet. 25
6A
Er treedt geen ionisatie op na ontsteekfase, maar de gloeiplug werkt wel.
26/27/28
29/39
6C
Er treedt ionisatie op na beëindigen warmtevraag, de gasklep sluit niet. 34/35
6H
De ionisatie (cq. de vlam) valt weg vlak na het ontsteken. 32
6L
De ionisatie (cq. de vlam) valt weg tijdens werkend toestel. 32/38
7A
UBA defect. 40
7C
De netspanning valt weg tijdens vergrendelende fout of reset te kort ingedrukt. 30/33
7F
Zekering F3 defect of UBA. 31/40
7L
UBA defect. 40
7H
UBA defect. 40
Displaycode = normaal zichtbaar
Servicecode = zichtbaar na indrukken service codeknop
38


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  • We have a Nefit VRC24 Heater boiler. It does not seem to stop after reaching the room temperature and seems to heat continuously. Does anyone know what could be the problem? Submitted on 2-1-2022 at 10:26

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