Nashuatec d422 / NRG spanner indicator lit

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  • JMM

    Nashuatec d422 / NRG spanner indicator lit

    Good day
    I am new to using forums...
    I need help with 2 similar machines: a Nashuatec d422 and a NRG D422
    On both machines the spanner indicator is lit, with no SC code on the display.
    SP 5-810 (SC code reset) does not seem to help (or I am doing it wrongly)
    The Naschutec had a bad thermistor. After replacing the fusing unit it worked well for a few weeks.
    Where do I start?
    Thanks in advance
    JH
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