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Racer S no longer alllows to set power/watts


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Verfasst am: 02.05.2021 [14:41]
rutger
Themenersteller
Dabei seit: 02.05.2021
Beiträge: 3
Hello,
My Racer S (suspect model 2014, with red circle around the crank) has been working well for quite a while. Yesterday - after not using it for 2 months - I wanted to go for a spin, but no matter how high I set the power (using the display, no KWT connected) there was no resistance (even at 400W). When I unplugged and plugged it in again the watt just showed 0 and there are not + and - buttons visible anymore (see pic). I tried resetting the display, put it inside in a warm room for a day, used hair dryer to ensure there is no moisture under the covers (it was in the cold garage for a few months), nothing helped.

Did anyone see this problem before and do you have any tips to repair? 2 months ago I tested the power/watts with a pedal power meter and it was still working perfect. My best guess it is caused by being in the cold garage.

Thanks for your help. And note: I do not have electric engineering skills (wouldn't know how to repair a PCB myself other than replacing it).

[Dieser Beitrag wurde 2mal bearbeitet, zuletzt am 02.05.2021 um 17:57.]
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Verfasst am: 03.05.2021 [21:09]
ErikHelwig
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Dabei seit: 16.12.2009
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Hello rutger,

what about a broken rpm sensor (cable)???
You can check first the connector in the steering tube of your racer S.

@ your red racer S -> unclip the plastic cover over your crank hole and tell me what you can see. A 6er allen screw = case 1 or a 15er mother screw.. = case 2.

In case one you only need a longer M12 screw and a 19 open end wrench for removing the crank.

In case 2 you need a special motortools Crank remover tool.
24,75x1 and a 19 open end wrench.
I think after removing the crank and the side parts you will find the rpm reed contact. Take a normal magnet and go to the contact to check the rpm signal.

Greetings from Austria

Erik

http://winterpokal.rennrad-news.de/images/user/52764.png?1642646
https://winterpokal.rennrad-news.de/images/team/236.png?1746796
11.11. 2000 bis 14.12. 2010 AX1; 14. 12. 2010 bis 3. 2. 2016 Ergo Race; ; 4. 2. 2016 bis 11. 3. 2016 Racer 8; 4. 2. 2016 bis 11. 3. 2016 Racer 8; Ab 15. 3. 2016 Racer S, ab 5.12. 2018 Racer S 2018
Letztes IPN Test-Ergebnis in KWT 2.x Sporttyp sehr hoch -> Wert 0,63.
http://help.kettlerworldtours.de/kettlerworldtours30/bedienung/tastatur-und-bedienpanelbelegung.html
https://www.kettlerworldtours.de/main/faq/premium-display.html
Verfasst am: 03.05.2021 [21:30]
rutger
Themenersteller
Dabei seit: 02.05.2021
Beiträge: 3
Hi Erik,

Thanks a lot for your prompt response! Attached a picture of the crank, with the cap and bolt removed. I'm affraid that's case 2?
I ordered a standard crank puller but that didn't fit (probably 22 mm is standard). Did not find a 24,75 mm version yet as you suggest.

I did disconnect and clean the connector in the steering tube, no luck yet.

Thanks again, Rutger
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Verfasst am: 03.05.2021 [21:48]
rutger
Themenersteller
Dabei seit: 02.05.2021
Beiträge: 3
PS: For motors I can find 24 mm (flywheel) pullers, not 24.75mm
Verfasst am: 03.05.2021 [22:53]
ErikHelwig
Beta Tester
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Dabei seit: 16.12.2009
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Hello rutger,

see

https://motortools.de/Aussengewinde-Abzieher-M2475-x-1-mm

Greetings from Austria

Erik



http://winterpokal.rennrad-news.de/images/user/52764.png?1642646
https://winterpokal.rennrad-news.de/images/team/236.png?1746796
11.11. 2000 bis 14.12. 2010 AX1; 14. 12. 2010 bis 3. 2. 2016 Ergo Race; ; 4. 2. 2016 bis 11. 3. 2016 Racer 8; 4. 2. 2016 bis 11. 3. 2016 Racer 8; Ab 15. 3. 2016 Racer S, ab 5.12. 2018 Racer S 2018
Letztes IPN Test-Ergebnis in KWT 2.x Sporttyp sehr hoch -> Wert 0,63.
http://help.kettlerworldtours.de/kettlerworldtours30/bedienung/tastatur-und-bedienpanelbelegung.html
https://www.kettlerworldtours.de/main/faq/premium-display.html



 

 

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