diff --git a/hardware/LightHub.pdf b/hardware/LightHub.pdf
new file mode 100644
index 0000000..2b21734
Binary files /dev/null and b/hardware/LightHub.pdf differ
diff --git a/lighthub/item.cpp b/lighthub/item.cpp
index 66716a3..a2001da 100644
--- a/lighthub/item.cpp
+++ b/lighthub/item.cpp
@@ -918,7 +918,7 @@ int Item::checkFM() {
         int pwr = node.getResponseBuffer(3);
         if (pwr > 0) aJson.addNumberToObject(out, "pwr", pwr / 10.); else aJson.addNumberToObject(out, "pwr", 0);
         
-         if (ftemp>fset+FM_OVERHEAT_CELSIUS && set)  
+         if (ftemp>FM_OVERHEAT_CELSIUS && set)  
             {
             mqttClient.publish("/alarm/ovrht", itemArr->name); 
             Ctrl(CMD_OFF); //Shut down 
diff --git a/lighthub/main.cpp b/lighthub/main.cpp
index 06a56f3..f6ddd09 100644
--- a/lighthub/main.cpp
+++ b/lighthub/main.cpp
@@ -1121,7 +1121,7 @@ void thermoLoop(void) {
                         mqttClient.publish("/alarm/snsr", item->name);
 
                 }
-                if (curtemp > itemTempSetting + THERMO_OVERHEAT_CELSIUS) mqttClient.publish("/alarm/ovrht", item->name);
+                if (curtemp > THERMO_OVERHEAT_CELSIUS) mqttClient.publish("/alarm/ovrht", item->name);
 
                 thermostatCheckPrinted = true;
                 Serial.print(item->name);
diff --git a/lighthub/options.h b/lighthub/options.h
index 109979e..ccf0c2f 100644
--- a/lighthub/options.h
+++ b/lighthub/options.h
@@ -1,6 +1,6 @@
 // Configuration of drivers enabled
 #ifndef PIO_SRC_REV
-#define PIO_SRC_REV v0.994
+#define PIO_SRC_REV v0.995
 #endif
 
 #define TXEnablePin 13
@@ -10,8 +10,8 @@
 #define IET_ATTEMPTS 1
 
 #define THERMO_GIST_CELSIUS 2
-#define THERMO_OVERHEAT_CELSIUS 5
-#define FM_OVERHEAT_CELSIUS 5.
+#define THERMO_OVERHEAT_CELSIUS 38
+#define FM_OVERHEAT_CELSIUS 40.
 
 #define EEPROM_offset 32+6