Question about Dyson DC34 Bagless Cordless Hand Vac - Iron/Satin Yellow
LED shows full green. checked and cleared nozzel. cleaned filter. motor will not turn on when trigger is pressed.
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Posted on Jan 02, 2017
SOURCE: Overheating Dyson DC07
Many devices including this one have what's known as a thermal cut out.
It is there for obvious safety reasons and prevents the temperature in the locality of the cut out from exceeding a pre-defined value.
Some of them require you to press a reset button in order to switch the power back on and other types simply reconnect the electricity supply when the temperature returns to normal (safe) operating limits.
The Dyson DC07 has a thermal cut out located close to the motor and it is of the "self resetting" type.
If your vacuum cleaner switches off after a few minutes the most probable cause (there can be others) is the thermal cut out has operated.
The first and most important thing to do is to establish why it has operated.... If the airflow around the motor has become restricted then it will not be being sufficiently cooled and so it will have cut out correctly. However, thermal cut outs are often quite crude internally and it is not uncommon for them to start cutting out at too low a temperature. So...
Here's what to do...
(some tools may be required to complete the following so read the entire procedure before starting. Please note this is not an absolute guide if you need really foolproof step by step instructions... buy a manual! But this should help)
There are now only two areas left that I know of which may cause further blockages. One is the "whole of life filter" located under the dust bin and the other one is inside each of those seven little cones (cyclonic chambers) at the top of the dust bin (root 8 cyclone is usually written on one of them). The following will require some tools and some common sense...
**** WARNING**** The next section requires someone who is technically minded, has fiddly fingers patience and a basic understanding of typical plastic goods assembly techniques. As I am not including photo's the descriptions given can only be considered as pointers to how to do it (I'm not writing a Haynes manual here! So if you are a cak handed clot with little or no patience and a tendency to resort to ever bigger hammers - take the vacuum cleaner to an independent repair shop - explain the symptoms, tell them what you have done so far and leave it to them!!
NB. NEVER remove or bypass the cut out. this really could be very dangerous!
I hope this is of some help... Regards to all.
Posted on Sep 30, 2008
1. Check the on/off button these can also be troublesome and if you've stood on the cable once or twice you could have a break in the wire and it's shorting, check by turning on and wiggle cable around where it enters machine.
2. Faulty thermocouple, it is held in a white plastic housing screwed with one T15 torx screw to the motor housing. You could replace it but I just shorted mine with some wire and it hasn't failed since and more importantly not caught fire yet!
Posted on May 28, 2009
I'm sorry to hear you're having difficulties with your DC35. From what you've described, it sounds there may be a fault with one of the components of your machine. If you give our Helpline a call, we should be able to help - you can reach us on 0800 298 0298 (UK), or 1-866-693-9766 (US). Please have the machine to hand when you call so we can run through some troubleshooting over the phone with you.
We'll look forward to helping you resolve this issue.
Dyson Online Customer Support
Posted on Mar 15, 2012
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