Why does my AC70 shut down after a few hrs using my cpap on the DC setting.
@troyandsister You might need to turn off ECO mode, which will shut down the unit after 4 hours if the draw is low.
I did turn off the eco and it still turned off and DC light started blinking. using AC it works great. unit is only 90 days old.
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@troyandsister When it is turned off automatically, turned on again, will the DC output be normal? If so, there may be a device incompatibility issue. If the DC output cannot be restored, the machine is faulty and needs to be repaired.