Compressor Problem

[Saleen836]

I have a 15ish year old Sealey 25l compressor, an older version of this one...
https://www.uktools.com/sealey-sac02415-compressor...

Only use it for putting air in tyres and blowing dust out of work tools, it has now decided to not want to work, when I switch it on it gives it's normal buzz/humm but will not fire the engine.

Any tips on what to look at first or scrap and replace?

[archie456]

Sounds like the start capacitor has gone awol.

Item 37 here

[normalbloke]

Also check the unloader valve and non return valves are working correctly and not gummed up with 15 years worth of non maintenance buildup.

[InitialDave]

I used to have a similar one that did that occasionally.

My usual solution was to just thump it...

[E-bmw]

I have the same compressor (different brand) and it 100% sounds like you need to reach inside the end cowling and start to move the end fan, likely that will get it going.

It is just a bit stiff, just DON'T LEAVE IT HUMMING!

It may take a bit more help to get going or need a few stop/starts, but it will go.

[droopsnoot]

Yes, I spent a while taking the fan cover off mine, turning the fan manually to free it off, then it would start without blowing a fuse. It was worse in cold weather, presumably because the oil was thicker. I got fed up with that, so bought a new start capacitor, and it's been fine ever since.

[Saleen836]

Thanks all, will start with the basic 'wallop' treatment and helping the fan along before rerplacing parts

[Saleen836]

E-bmw said:

I have the same compressor (different brand) and it 100% sounds like you need to reach inside the end cowling and start to move the end fan, likely that will get it going.

It is just a bit stiff, just DON'T LEAVE IT HUMMING!

It may take a bit more help to get going or need a few stop/starts, but it will go.

Had some time earlier today so had a play with my compressor to see if I could get it going, gave the end fan a spin manually while spraying it with some GT85 spray, a few more manual turns then switched it on for a few seconds while giving the fan a helping hand, repeated this step3/4 times and it fired up!

Thanks for the help

[E-bmw]

Saleen836 said:

E-bmw said:

I have the same compressor (different brand) and it 100% sounds like you need to reach inside the end cowling and start to move the end fan, likely that will get it going.

It is just a bit stiff, just DON'T LEAVE IT HUMMING!

It may take a bit more help to get going or need a few stop/starts, but it will go.

Had some time earlier today so had a play with my compressor to see if I could get it going, gave the end fan a spin manually while spraying it with some GT85 spray, a few more manual turns then switched it on for a few seconds while giving the fan a helping hand, repeated this step3/4 times and it fired up!

Thanks for the help

Well done, do it every now & then & it will be good for years.