# Wahoo Kickr Core Erg Mode **URL:** \ **Category:** SYSTM Software\ **Created:** [February 21, 2025, 8:21pm UTC](https://wahoox.forum.wahoofitness.com/t/wahoo-kickr-core-erg-mode/27749 "2025-02-21T20:21:59Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Bannanas](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/bannanas/32/21435_2.png) [@Bannanas](https://wahoox.forum.wahoofitness.com/u/Bannanas)\ **Post date:** [February 21, 2025, 8:21pm UTC](https://wahoox.forum.wahoofitness.com/t/wahoo-kickr-core-erg-mode/27749/1 "2025-02-21T20:21:59Z")
Whenever I do workouts in erg mode on mywhoosh or zwift, after the first couple of reps the resistance increases to an extreme level where I can hardly pedal, then goes so low that I spin out, then increases again. All during the same rep. And trying workouts without Erg mode, I can’t even get to a high enough power without spinning out for anything above z3. Is this a software or hardware issue, and does anyone know what I can do to fix it? It’s very (very) frustrating! Thank you:) ---
**Author:** ![fukawitribe](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/fukawitribe/32/493_2.png) [@fukawitribe](https://wahoox.forum.wahoofitness.com/u/fukawitribe)\ **Post date:** [February 22, 2025, 12:08am UTC](https://wahoox.forum.wahoofitness.com/t/wahoo-kickr-core-erg-mode/27749/2 "2025-02-22T00:08:56Z")
Hi Bannanas, welcome to the forum. Sounds very much like a hardware issue to me, I would reach out to Wahoo customer support with those details, and any other data you could share. Good luck. ---
**Author:** ![Glen.Coutts](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/glen.coutts/32/25318_2.png) [@Glen.Coutts](https://wahoox.forum.wahoofitness.com/u/Glen.Coutts)\ **Post date:** [February 22, 2025, 12:21am UTC](https://wahoox.forum.wahoofitness.com/t/wahoo-kickr-core-erg-mode/27749/3 "2025-02-22T00:21:35Z")
Hey Tim. I just sent you a DM. 🙂