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Topic starter
26/12/2021 9:23 am
Car runs but doors wont open.I have 300dc at Da1 and Da2.
26/12/2021 10:45 am
Open Armature, bad brushes ????
26/12/2021 10:49 am
300VDC relative to what?? each other (answer above) referenced to negative on rectifier?? referenced to Positive on rectifier?? Do you have a door operator print??
26/12/2021 8:29 pm
I had this once on a DMC. . It was bad capacitor under door controller But it was intermittent
Last edited by Jluff; 12/26/21 12:29 PM.
27/12/2021 12:38 am
If you are reading 300vdc between DA1 and DA2, then motor armature is open, probably the motor brushes
Topic starter
27/12/2021 7:59 am
Yes. I have a faded door operator prints. If i open the door with operator de energized. When its energized it will close it. Bad re
27/12/2021 9:17 pm
I would look at the capacitors that are paralleled around the contacts on the open and close relays. One of them is most likely shorted.