I replace a hot roller on a Bizhub 283, when I installed fuser into machine it attempted warm-up then code 3423 came up. I turned off sw2 held utility button until trouble reset came up on screen, I pushed trouble reset ok came up, I then turned off sw2 then on and code came back. Perhaps the thermistor assembly needs replacement however I can not find a part#. Any advice would be appreciated. Also attempted to go into diagnostics but the password 00000000 would not work, help.
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