iFixit - Answers With Device "Dyson DC35"

Dyson DC35: Why will my DC35 not turn on

Wed, 26 Jul 2023 15:45:36 -0700

I have replaced the battery on my DC35 but it still won't turn on. The green power lights up briefly when I press the start button, but nothing else happens. Is it worth, or even possible to repair?

⟐ Answered July 26, 2023 at 15:45 MST

Dyson DC35: Dyson DC35 Stalling Repeatedly

Sat, 02 Aug 2025 09:27:07 -0700

This vacuum has a clean filter, clean brush, clear canister, charged battery. No matter what I do, it only works for about ten seconds before it shuts off, then I can start it again, but the cycle continues with it stalling, and stalling.

⟐ Commented August 02, 2025 at 9:27 MST

Dyson DC35: AC/DC adapter for the DYSON DC35, what is the polarity of the plug?

Wed, 26 Jul 2023 15:42:40 -0700

AC/DC adapter for the DYSON DC35, what is the polarity of the plug?

⟐ Answer accepted July 26, 2023 at 15:42 MST

Dyson DC35: My unit turns off after 3 to 4 seconds. And the 'max' button is depres

Wed, 26 Jul 2023 15:42:16 -0700

2 problems: Runs for 2 to 3 seconds then turns itself off. I can turn it back on immediately. Max button is depressed and will not pop back out. The unit turns off even with the filter removed.-Yes I pressed the micro switch. The air coming out is not hot. I have tried covering the vents.

I took the torx screw out of the handle but can’t get to the ‘max’ button.

Any hints?

⟐ Answer accepted July 26, 2023 at 15:42 MST

Dyson DC35: Why is the motorized power nozzle brush no longer spinning?

Mon, 10 Aug 2020 23:44:11 -0700

So the brush on my DC35 motorized power nozzle doesn’t spin anymore. It’s not jammed, and there’s actually no voltage at the nozzle motor whatsoever, nor at the accessory connector on the vacuum motor assembly itself if I detach the power nozzle. The vacuum itself seems to work fine, though at the same time I noticed that the green light around the “max” button no longer lights (but max mode still works - weird).

This is all coincident on me taking apart the power nozzle to clean it, and when I put it back together it no longer worked. So of course I thought I had done something to the nozzle, but signs are pointing to the control boards themselves.

Has anyone else experienced this issue?

One related question: does anyone have any idea how the control board is sensing when a motorized attachment is connected? It must be doing so, because when one is attached it won’t go into max mode even when selected (I’m assuming that’s too big of a power draw to do both max suction and drive a motorized brush simultaneously).

⟐ Answer edited August 10, 2020 at 23:44 MST