Treadmill problems again...

[Edtwozeronine]

I first had issues about 6 months ago with my second hand treadmill tripping the ring part of the way into a session, since then I've sent off my controller board to treadmill doctor co uk. He repaired the board and sent it back after approximately a month.

Since then I've had the a dedicated circuit installed with a 16a RCBO so that if tripping occurs with the treadmill again, it will only effect a dedicated socket and not the ring main as well.

Unfortunately, a month into using the treadmill it's tripping the circuit after about 30 minutes of use. In college I learned of type C and type D RCDs and RCBOs that have different tripping dynamics to usual household type B breakers. Do you think one of these could prevent the tripping problem or is it likely to be something else?

Seems this is fairly wide spread problem having searched the interwebs...

 

[telectrix]

problem with going out for a run is that when you've had enough you still got to get back home. with a treadmill, all you have to do is fall off into the nearest armchair and get 'er indoors to fetch a brew or a beer.

 

[Silly Sausage]

problem with going out for a run is that when you've had enough you still got to get back home. with a treadmill, all you have to do is fall off into the nearest armchair and get 'er indoors to fetch a brew or a beer.

Even better, get a rowing machine, you're sat down and it doesn't knacker you're knees.

 

[telectrix]

Even better, get a rowing machine, you're sat down and it doesn't knacker you're knees.

the dreaded misplaced apostrophe strikes again ...... your knees...

 

[marconi]

When was the last time you lubricated the treadmill belt?

When and How to Lubricate a Treadmill Belt - Optimum Fitness

We are often asked about how often you have to lubricate your treadmill belt and how to do it

optimum-fitness.net

And here is a pictorial guide to the state of the commutator and brushes which might be useful to you in assessing the state of motor.

https://evmc2.files.wordpress.com/2013/05/brushwearguide.pdf

 

[Edtwozeronine]

When was the last time you lubricated the treadmill belt?

When and How to Lubricate a Treadmill Belt - Optimum Fitness

We are often asked about how often you have to lubricate your treadmill belt and how to do it

optimum-fitness.net

And here is a pictorial guide to the state of the commutator and brushes which might be useful to you in assessing the state of motor.

https://evmc2.files.wordpress.com/2013/05/brushwearguide.pdf

A couple of days ago actually, the treadmill dr guy sent a bottle of slipcoat lubricant and a syringe to apply it with, this is it's second treatment after the 1st 2 months ago. It was part of the board replacement deal.

Been considering buying an amp-meter clamp tester to see if the power spikes at any point during use, although my understanding is that you will need to put it around just 1 conductor at a time. Which means carefully removing the outer sheath unless there is another way?

So far all I have is a multimeter from lidl and checked continuity between plug pins and where the AC supply enters the controller board, that and 230v between line and neutral, which doesn't need to be tested really as it's clearly getting all the power it needs.

 

[marconi]

Could you describe the circumstances when it 'never' trips and when it does trip the RCBO?

eg: Slow speed plod over a short time - no trip; high speed over a long period trips. Slow speed over a long time .... Medium speed over a short time/long time...

Could you buy a 3Amp and 5Amp fuse and put it in the plug and see what happens?

Status Mixed Fuse - (10 Pieces): Amazon.co.uk: DIY & Tools

Free delivery and returns on all eligible orders. Shop Status Mixed Fuse - (10 Pieces).

www.amazon.co.uk

 

[Edtwozeronine]

I'm a slow plodder doing long stretches, well if an hour is long. I find it helps my back to loosen up, I've had a bad back forever but a treadmill session helps to stop seizing up.

I have access to 3a and 5a fuses in the electrical box, it'll be interesting to try out whatever your plan is with them, my thoughts are the treadmill won't start or will go very slowly. I'm willing to give it a try though!

 

[Charlie_]

I recommend setting up tables around the treadmill with beer on them..
Will be like going on a pub crawl within the safety of your own home

 

[marconi]

How much do you weigh?

Swap the 13A fuse in the plug for a 5A and run it for an hour. Then use the machine as you would normally for an hour run on at least 5 occasions.

Then repeat the above with a 3A fuse in the plug.

 

[DPG]

How tall are you?

 

[Charlie_]

What star sign are you?

 

[Edtwozeronine]

I'm 18 stone, 5' 9" , a Virgo and trying and failing to improve myself. Still, Marconi's experiment sounds fun, I'll go find the fuses.

 

[Edtwozeronine]

Even better, get a rowing machine, you're sat down and it doesn't knacker you're knees.

I had a rowing machine years back, wasn't agreeable to my spine.

 

[Charlie_]

I'm 18 stone, 5' 9" , a Virgo and trying and failing to improve myself. Still, Marconi's experiment sounds fun, I'll go find the fuses.

Typical Virgo..

 

[marconi]

Edtwozeronine: We are using the fusing characteristics of the 3A and 5A to provide information on the average current being drawn by the treadmill over a one hour period, viz:

Current In – The maximum value of current that the fuse link will carry continuously without deterioration under specified conditions.

Conventional Time – The time specified for which the fuse shall carry non-fusing current or operate within for fusing current. Conventional times are: 1 hour for ratings of 63A and below 2 hour for ratings above 63A and up to 160A 3 hours for ratings above 160A and up to 400A 4 hours for ratings above 40A

Conventional Fusing Current If – The value of current which causes operation of the fuse link within the ‘conventional time’ (usually 1.6 x In); previously known as “minimum fusing current”. Conventional Non-fusing Current (Inf) – The value of current which the fuse will carry for the conventional time without operating (usually 1.25 x In).

So, for the 13A fuse, 1.25 x 13 = 16.25A and 1.6 x 13 = 20.8A.
For 5A - 6.25A/8A
For 3A - 3.75A/4.8A

The thermal functionality of an MCB/RCBO is designed to trip after one hour when the average current through it is 1.45 x I, so for 16A mcb, 1.45 x 16 = 23.2A

See:

www.beama.org.uk/asset/A3738A16-B693-4354-9BA38AB49204773F/

and

http://storage.electrika.com/manu/man-0270/pdftech/0270-power-dist-15-135-138.pdf