LG · Dishwasher Minor

CR — Test / calibration mode

CR indicates the dishwasher is in factory / installer test mode. It is not a fault but the unit will not run a normal cycle until test mode is exited.

Keep using it?
Yes — fix when convenient
DIY difficulty
Easy
Verified against
lg.com ↗

How to fix it

  1. Press POWER to turn the dishwasher off.
  2. Wait 10 seconds and press POWER on again.
  3. If CR remains, cycle the breaker for 2 minutes to fully reset.
  4. Inspect the control panel for any stuck or sticky button.
  5. Select a normal cycle and press Start to verify normal operation.
  6. If CR cannot be exited, replace the UI / display board.

Why it happens

Typical signs: CR shown on display · Buttons trigger individual components instead of running a cycle · Unit appears 'stuck' but otherwise normal

  • Test mode entered during install Installer ran self-test and didn't exit before leaving.
  • Accidental button combination User pressed a key sequence that enters service mode.
  • Power-on with a key held A stuck or held key during power-up boots into test mode.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • LG dishwasher UI display board Common replacement
    Amazon →

More LG dishwasher codes

2H 2H — Delay-start indicator (2 hours remaining) AE AE — Leak Detected (Aqua Error) bE bE — Bubble / oversuds error CE CE — Motor / communication error CL CL — Child lock / control lock active E1 E1 — Leak detected (newer display label)

All LG codes → All dishwasher codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: lg.com.