Update powerwall.sh

powerwall.sh

@@ -76,7 +76,7 @@ CHECKTEMP(){
 CHECKTEMPSENSOR(){
 	echo ${PW_TEMP_THRESHOLDS[${1}]} | cut -d',' -f 1 | read temp_warn
 	echo ${PW_TEMP_THRESHOLDS[${1}]} | cut -d',' -f 2 | read temp_crit
-	[ "${PW_SENSOR_TYPE[${1}]}" != "esxi" ] && average=$(AVERAGETEMP ${PW_SENSOR_ID[${1}]} 3) || average=''
+	[ "${PW_SENSOR_TYPE[${1}]}" != "esxi" ] && average=$(AVERAGETEMP ${PW_SENSOR_ID[${1}]} 3) || average=${2}
 	
 	if [ "${PW_SENSOR_TYPE[${1}]}" == "mqtt" ]; then
 		mqtt_message=`${mqtt_conn} -t tele/${1}/SENSOR -C 1`