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Why is my wattage so low?

Posted: Fri Jul 29, 2016 10:02 pm
by rayterry
What would cause my PP to show an average of only 3.6 watts? Now I know I’m a wimp rider (64 yr old chubby guy w/Parkinson’s), but my old Gen3 usually had my average power in the 75 watts range. Ride file attached.

The PP is solidly mounted in the combo mount and I’ve done what I thought were good out&back rides and adjusted the profile via Isaac’s Check Calibration. The PP is mounted such that the PowerPod line on the unit is pretty much parallel to the ground. The vent in front does not seem to be blocked.

Why so low? Any ideas?

Re: Why is my wattage so low?

Posted: Wed Aug 03, 2016 2:56 pm
by rayterry
I did yet another out&back check cal and got the average wattage up to 11 watts. But riding 15+ mph on a flat into a slight breeze shows be pedaling @ 0 watts. ??? Wind scaling seems ok/close as Isaac shows the wind changing direction @ the halfway point. What could be going on?

Re: Why is my wattage so low?

Posted: Wed Aug 03, 2016 6:56 pm
by Velocomp
Please post your new ride file. We will figure this out!

Re: Why is my wattage so low?

Posted: Wed Aug 03, 2016 11:15 pm
by rayterry
Attached is the ibr file for today's ride.

Thx.

Re: Why is my wattage so low?

Posted: Thu Aug 04, 2016 11:56 am
by Velocomp
Your profile shows a negative value of rolling resistance. This is why your watts are so low.

Do the following:

1) In Isaac go to Device/Setup/Reset Profile-Device

2) Reset Profile 1

3) Do not enter any changes to weight, etc.

4) Do a new 5 minute first-ride

5) Do an out-and-back ride

6) Post the ride file here, then we will adjust the parameters.

Your ride file shows a lot of 0 cadence pauses. Are these pauses correct?

Re: Why is my wattage so low?

Posted: Thu Aug 04, 2016 3:54 pm
by rayterry
Did as directed and short o&b is posted. Hopefully it is long enough.

Yes, I coast from time to time... :)

Ray

Re: Why is my wattage so low?

Posted: Thu Aug 11, 2016 2:39 pm
by rayterry
Attached is a longer o&b extracted from today's ride file.

Note that Isaac's Check Calibration wants to increase my Fric even higher.

???

Re: Why is my wattage so low?

Posted: Thu Aug 11, 2016 4:07 pm
by Velocomp
It looks like you did not reset your profile (steps one and two).

Until you reset the profile, you won't get correct results.

Please perform the following steps, and confirm that they have been done:

1) In Isaac go to "Device/Setup/Reset Profile-Device"

2) Click the "Reset Profile 1" option

3) Do not enter any changes to weight, etc.

4) Do a new sensor pairing

5) Do a new 5 minute first-ride

6) Do an out-and-back ride

7) Post the ride file here, then we will adjust the parameters.

Re: Why is my wattage so low?

Posted: Thu Aug 11, 2016 6:29 pm
by rayterry
Actually I did do a reset of profile 1 via Isaac. It reported back as successful. I was using profile 2, but did reset profile 1. Perhaps I should reset profile 1 and profile 2 via Isaac?

Re: Why is my wattage so low?

Posted: Thu Aug 11, 2016 7:21 pm
by Velocomp
You need to use the profile that you reset. So, if you reset profile 1, then use profile 1 as described in the steps.

Re: Why is my wattage so low?

Posted: Fri Aug 12, 2016 4:06 pm
by rayterry
Here is the o&b that I did after resetting profile 2 and doing a 5 min ride. Hope this is what you're looking for. Your help -is- appreciated.

Re: Why is my wattage so low?

Posted: Sun Aug 14, 2016 12:01 am
by Velocomp
OK, this is looking much better!

I tweaked your profile a bit. Load this into your PowerPod and all should be well.