How To/Heated bed not working

Made some changes to the merlin settings based on blog posts I found.
diff --git a/Configuration_adv.h b/Configuration_adv.h
index e4e3b25…66664d3 100644
— a/Configuration_adv.h
+++ b/Configuration_adv.h
@@ -94,7 +94,7 @@

  • Thermal Protection parameters for the bed are just as above for hotends.
    */
    #if ENABLED(THERMAL_PROTECTION_BED)
  • #define THERMAL_PROTECTION_BED_PERIOD 20 // Seconds
  • #define THERMAL_PROTECTION_BED_PERIOD 30 // Seconds
    #define THERMAL_PROTECTION_BED_HYSTERESIS 2 // Degrees Celsius

    /**
    @@ -106,8 +106,8 @@

    • If you get too many “Heating failed” errors, increase WATCH_BED_TEMP_PERIOD and/or decrease
    • WATCH_BED_TEMP_INCREASE. (WATCH_BED_TEMP_INCREASE should not be below 2.)
      */
  • #define WATCH_BED_TEMP_PERIOD 60 // Seconds
  • #define WATCH_BED_TEMP_PERIOD 180 // Seconds
    #endif

What power supply are you using? I just opened a brand new aluminum bed and it took 5 minutes from 25-70.

What is on top of your bed it looks really thick?

I have the 30A from your site as well. I have a 2.3mm pane of glass on top.
After changing the settings it is heating and retaining the temp.