diff --git a/environments.ini b/environments.ini
index 6f27295..a330d88 100644
--- a/environments.ini
+++ b/environments.ini
@@ -113,6 +113,7 @@ build_flags =
   '-DWM_PWD_FROM_MAC=true'
   '-DUSE_MAC_AS_GATEWAY_NAME=true'
   '-DZsensorC37_YL83_HMRD="HMRD"'
+  '-DESPWifiManualSetup=true'
   '-DDEEP_SLEEP_IN_US=120000000' ; Deep sleep for a period of time to conserve battery
   '-DESP32_EXT0_WAKE_PIN=GPIO_NUM_14' ;Should a water leak be detected immediatly wake the ESP32 and report the problem
   '-DESP32_EXT0_WAKE_PIN_STATE=0' ;Should a water leak be detected immediatly wake the ESP32 and report the problem, sensor state to look for wakeup
diff --git a/main/ZwebUI.ino b/main/ZwebUI.ino
index 695c55d..0d88558 100644
--- a/main/ZwebUI.ino
+++ b/main/ZwebUI.ino
@@ -46,8 +46,6 @@ QueueHandle_t webUIQueue;
 WebServer server(80);
 
 /*------------------- External functions ----------------------*/
-
-esp_err_t nvs_flash_erase(void);
 extern void eraseAndRestart();
 extern unsigned long uptime();
 
diff --git a/main/main.ino b/main/main.ino
index f8dae48..f239c5c 100644
--- a/main/main.ino
+++ b/main/main.ino
@@ -1306,20 +1306,6 @@ void checkButton() {
 void checkButton() {}
 #  endif
 
-void eraseAndRestart() {
-  Log.trace(F("Formatting requested, result: %d" CR), SPIFFS.format());
-
-#  if defined(ESP8266)
-  WiFi.disconnect(true);
-  wifiManager.resetSettings();
-  delay(5000);
-  ESP.reset();
-#  else
-  nvs_flash_erase();
-  ESP.restart();
-#  endif
-}
-
 void saveMqttConfig() {
   Log.trace(F("saving config" CR));
   DynamicJsonDocument json(512 + ota_server_cert.length() + mqtt_cert.length());
@@ -1923,6 +1909,25 @@ String UTCtimestamp() {
   return buffer;
 }
 
+/*
+ Erase flash and restart the ESP
+*/
+void eraseAndRestart() {
+  Log.trace(F("Formatting requested, result: %d" CR), SPIFFS.format());
+
+#  if defined(ESP8266)
+  WiFi.disconnect(true);
+#    ifndef ESPWifiManualSetup
+  wifiManager.resetSettings();
+#    endif
+  delay(5000);
+  ESP.reset();
+#  else
+  nvs_flash_erase();
+  ESP.restart();
+#  endif
+}
+
 #endif
 
 #if defined(ESP8266) || defined(ESP32) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1280__)