diff -r 9e400c2fe22f -r 9bfd85878edc main/task_driver.c
--- a/main/task_driver.c	Mon Jul 05 10:31:38 2021 +0200
+++ b/main/task_driver.c	Sat Jul 17 20:21:02 2021 +0200
@@ -140,7 +140,7 @@
 
     if (val != oldval) {
     	ESP_LOGI(TAG, "MLT_PWM(%d) val=%d %.0f watt", percent, val, (percent / 100.0) * equipment.MLT_watt);
-    	ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 1024 - val);
+    	ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, /*1024 - */val);
     	ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0);
     }
     oldval = val;