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Bad powermeter calibration

When I calibrate my power meter through my garmin edge, it says "calibration succesful -8779", and not 0. When I test the wattage, it claims I am pushing 2000w with lowest gear and low cadence. Why does it not calibrate correctly?

Top Replies

Luko79 7 months ago in reply to 1748928 +1

Try to calibrate with the AXS app. If that gives you back such a bad offset value, then my 1st comment is 100% sure. it is common problem with Quarqs (that non-functioning, it has too high failure rate…

All Replies

0 schmjoe 8 months ago

Which PM do you use?

0 Luko79 8 months ago

because your powermeter got wrong.

0 1748928 8 months ago in reply to schmjoe

Edge 530

0 schmjoe 8 months ago in reply to 1748928

Which Powermeter do you use?

0 1748928 8 months ago in reply to schmjoe

Quarq PM spider 130 BCD

0 aweatherall 8 months ago in reply to 1748928

You may need to contact the manufacturer

Quarq Zero Offset Guidelines:

The Zero Offset of a Quarq power meter does NOT have to be a certain number but should meet BOTH of the below criteria.

The zero offset value must return within +/-1000.
The zero offset must not drift more than +/-50 points during a single ride.

0 Luko79 7 months ago in reply to 1748928

Try to calibrate with the AXS app. If that gives you back such a bad offset value, then my 1st comment is 100% sure. it is common problem with Quarqs (that non-functioning, it has too high failure rate , comparing to other quality spider based powermeter brand/s/).