Author Topic: Dyson DC07 Relief Valve Problem. (Read 19064 times)

MVacs · « **Reply #30 on:** March 10, 2016, 10:56:18 pm »

Quote from: rob_520 on March 10, 2016, 10:42:09 pm

tried it without the filter and it worked valve opened ....

How are you washing you filters?

Rinsing them under the tap and drying them (as Dyson suggest) is next to useless. We pressure wash them and then bung them in the washing machine.

rob_520 · « **Reply #31 on:** March 10, 2016, 11:10:42 pm »

no the filters are brand new

RustySkull · « **Reply #32 on:** March 11, 2016, 08:27:11 am »

I know you've checked but check again for cracks, gaps etc... It can't just not work there has to be a cause.
And if you have a machine that the valve works, but that same valve in this machine it doesn't work then that points to that machine being faulty. Not the valve.

beko1987 · « **Reply #33 on:** March 11, 2016, 01:34:39 pm »

Yep, you do seem to have an air leak somewhere. Whats the changeover valve like? I had one that had a small crack in the big ring that sits over the big spigot on the chassis, and that lost air.

rob_520 · « **Reply #34 on:** March 15, 2016, 10:36:34 am »

if I take the cyclone and its bin off hold my hand over the the air intake it works really strange

Parwaz7862 · « **Reply #35 on:** March 15, 2016, 10:41:50 am »

Maybe the cyclone gaskette needs to sit flush, I made that mistake when doing it for the first time on my DC25. Take it apart and try again. Also, take off the valve pipe on the side and block the suction with the palm of your hand. Will it work?

rob_520 · « **Reply #36 on:** March 15, 2016, 11:11:31 am »

checked the gasket its new and is sitting flush ....take the side valve/p tube off hold my hand over it the valve opens I'm baffled

Parwaz7862 · « **Reply #37 on:** March 15, 2016, 12:26:02 pm »

Check the valve pipe if it has the seal fitted

rob_520 · « **Reply #38 on:** March 17, 2016, 04:15:53 pm »

right not to be one to get up lol...I have been through everything .today I thought new day another look .and I thing I found the problem .took the wand out hold my hand over the hose without the wand and it works ..don't have another dc33 wand so I put a dc14 wand in there as a temp thing to test ..held my hand over the top of the dc14 wand and the valve opened ....must be the seal in the wand gone ...thought I would share this incase anyone else has the same problem ..thanks for all the suggestion though

Parwaz7862 · « **Reply #39 on:** March 17, 2016, 05:05:02 pm »

Oh DC33 wands are crap, I had to get a new one from Dyson under warranty because there's a white circle plastic thing which acts as a seal! They always come loose and have seen DC33's often with this issue

I would say the DC14 wand is the best design

rob_520 · « **Reply #40 on:** March 17, 2016, 05:56:02 pm »

I think this one is missing don't know if anyone has a picture of the inside of the wand so I can see whats missing probley have to get another wand lol

Madrat · « **Reply #41 on:** March 17, 2016, 07:40:04 pm »

I've come across quite a few dysons (all different models, but mainly newer ones) where blocking the wand doesn't operate the relief valve but blocking the hose dose.