diff -r 6d97eb820cc1 -r 3518c07737d8 thermferm/thermferm.c
--- a/thermferm/thermferm.c	Sat Apr 20 11:48:20 2024 +0200
+++ b/thermferm/thermferm.c	Mon Apr 22 11:33:04 2024 +0200
@@ -1033,18 +1033,15 @@
     unit->alarm_flag = 0;
 
     if (unit->air_address) {
-	rc = device_in(unit->air_address, &temp);
+	unit->air_state = rc = device_in(unit->air_address, &temp);
 	if (rc == DEVPRESENT_YES) {
 	    if (unit->air_temperature != temp) {
 		unit->mqtt_flag |= MQTT_FLAG_DATA;
 	    }
 	    unit->air_temperature = temp;
-	    unit->air_state = 0;
-	} else if (rc == DEVPRESENT_ERROR) {
-	    unit->air_state = 1;
-	} else {
-	    unit->air_state = 2;
 	}
+    } else {
+	unit->air_state = DEVPRESENT_NO;
     }
 
     if (unit->beer_address) {
@@ -1053,32 +1050,27 @@
 	    /* Read alternative sensor */
 	    rc = device_in(unit->beer_address2, &temp);
 	}
+	unit->beer_state = rc;
 	if (rc == DEVPRESENT_YES) {
 	    if (unit->beer_temperature != temp) {
 		unit->mqtt_flag |= MQTT_FLAG_DATA;
 	    }
 	    unit->beer_temperature = temp;
-	    unit->beer_state = 0;
-	} else if (rc == DEVPRESENT_ERROR) {
-	    unit->beer_state = 1;
-	} else {
-	    unit->beer_state = 2;
 	}
+    } else {
+	unit->beer_state = DEVPRESENT_NO;
     }
 
     if (unit->chiller_address) {
-	rc = device_in(unit->chiller_address, &temp);
+	unit->chiller_state = rc = device_in(unit->chiller_address, &temp);
 	if (rc == DEVPRESENT_YES) {
 	    if (unit->chiller_temperature != temp) {
 		unit->mqtt_flag |= MQTT_FLAG_DATA;
 	    }
 	    unit->chiller_temperature = temp;
-	    unit->chiller_state = 0;
-	} else if (rc == DEVPRESENT_ERROR) {
-	    unit->chiller_state = 1;
-	} else {
-	    unit->chiller_state = 2;
 	}
+    } else {
+	unit->chiller_state = DEVPRESENT_NO;
     }
 
     /*
@@ -1733,20 +1725,15 @@
     lcd_buf_write(row, "Room temp N/A       ");
     pthread_mutex_unlock(&mutexes[LOCK_LCD]);
     int updateHT = 0;
-    if (Config.temp_address) {
-	rc = device_in(Config.temp_address, &temp);
+    if (Config.temp_uuid) {
+	Config.temp_state = rc = device_in(Config.temp_uuid, &temp);
 	if (rc == DEVPRESENT_YES) {
 	    if (Config.temp_value != temp)
 		updateHT = 1;
 	    Config.temp_value = temp;
-	    Config.temp_state = 0;
 	    pthread_mutex_lock(&mutexes[LOCK_LCD]);
 	    lcd_buf_write(row, "Room temp %.1f%c    ", Config.temp_value / 1000.0, 0x01);
 	    pthread_mutex_unlock(&mutexes[LOCK_LCD]);
-	} else if (rc == DEVPRESENT_ERROR) {
-	    Config.temp_state = 1;
-	} else {
-	    Config.temp_state = 2;
 	}
 	mDelay(10);
     }
@@ -1755,20 +1742,15 @@
     pthread_mutex_lock(&mutexes[LOCK_LCD]);
     lcd_buf_write(row, " Humidity N/A       ");
     pthread_mutex_unlock(&mutexes[LOCK_LCD]);
-    if (Config.hum_address) {
-	rc = device_in(Config.hum_address, &temp);
+    if (Config.hum_uuid) {
+	Config.hum_state = rc = device_in(Config.hum_uuid, &temp);
 	if (rc == DEVPRESENT_YES) {
 	    if (Config.hum_value != temp)
 		updateHT = 1;
 	    Config.hum_value = temp;
-	    Config.hum_state = 0;
 	    pthread_mutex_lock(&mutexes[LOCK_LCD]);
 	    lcd_buf_write(row, " Humidity %.1f%%     ", Config.hum_value / 1000.0);
 	    pthread_mutex_unlock(&mutexes[LOCK_LCD]);
-	} else if (rc == DEVPRESENT_ERROR) {
-	    Config.hum_state = 1;
-	} else {
-	    Config.hum_state = 2;
 	}
 	mDelay(10);
     }