diff --git a/resources/profiles/Qidi/process/fdm_process_qidi_x3_common.json b/resources/profiles/Qidi/process/fdm_process_qidi_x3_common.json
index 6f710334de..b39151c20f 100644
--- a/resources/profiles/Qidi/process/fdm_process_qidi_x3_common.json
+++ b/resources/profiles/Qidi/process/fdm_process_qidi_x3_common.json
@@ -114,5 +114,5 @@
     "internal_solid_infill_pattern": "monotonic",
     "initial_layer_travel_speed": "50%",
     "filter_out_gap_fill": "2",
-    "notes": "If you want to use Orca's chamber temperature control feature, check that printer.cfg has added the following M191 macro.\nTo add it: go to Fluidd web interface--configuration, copy the following code to the top of the printer.cfg document, SAVE&RESATART  \n\n[gcode_macro M191]\ngcode:\n    #Parameters\n    {% set s = params.S|float %}\n    \n    M141 {% for p in params %}{'%s%s' % (p, params[p])}{% endfor %}  ; Set hotend temp\n    {% if s != 0 %}\n        TEMPERATURE_WAIT SENSOR=\"heater_generic hot\" MINIMUM={s} MAXIMUM={s+1}   ; Wait for hotend temp (within 1 degree)\n    {% endif %}"
+    "notes": "If you want to use Orca's chamber temperature control feature, check that printer.cfg has added the following M191 macro.\nTo add it: go to Fluidd web interface--configuration, copy the following code to the top of the printer.cfg document, SAVE&RESATART  \n\n[gcode_macro M191]\ngcode:\n    {% set s = params.S|float %}\n    {% if s == 0 %}\n        # If target temperature is 0, do nothing\n        M117 Chamber heating cancelled\n    {% else %}\n        SET_HEATER_TEMPERATURE HEATER=chamber_heater TARGET={s}\n        # Orca: uncomment the following line if you want to use heat bed to assist chamber heating\n        M140 S90\n        TEMPERATURE_WAIT SENSOR=\"heater_generic chamber_heater\" MINIMUM={s-1} MAXIMUM={s+1}\n        M117 Chamber at target temperature\n    {% endif %}"
 }