diff --git a/apps/openmw/mwclass/container.cpp b/apps/openmw/mwclass/container.cpp
index 1847fbd44..be76bd0b4 100644
--- a/apps/openmw/mwclass/container.cpp
+++ b/apps/openmw/mwclass/container.cpp
@@ -211,6 +211,8 @@ namespace MWClass
         std::string text;
         if (ref->mRef.mLockLevel > 0)
             text += "\n#{sLockLevel}: " + MWGui::ToolTips::toString(ref->mRef.mLockLevel);
+        else if (ref->mRef.mLockLevel < 0)
+            text += "\n#{sUnlocked}";
         if (ref->mRef.mTrap != "")
             text += "\n#{sTrapped}";
 
@@ -240,9 +242,10 @@ namespace MWClass
 
     void Container::lock (const MWWorld::Ptr& ptr, int lockLevel) const
     {
-        ptr.getCellRef().mLockLevel = abs(ptr.getCellRef().mLockLevel); //Makes lockLevel positive
-        if(lockLevel>=0) //Lock level setting left as most of the code relies on this
-            ptr.getCellRef().mLockLevel = lockLevel;
+        if(lockLevel!=0)
+            ptr.getCellRef().mLockLevel = abs(lockLevel); //Changes lock to locklevel, in positive
+        else
+            ptr.getCellRef().mLockLevel = abs(ptr.getCellRef().mLockLevel); //No locklevel given, just flip the oriional one
     }
 
     void Container::unlock (const MWWorld::Ptr& ptr) const
@@ -250,13 +253,6 @@ namespace MWClass
         ptr.getCellRef().mLockLevel = -abs(ptr.getCellRef().mLockLevel); //Makes lockLevel negative
     }
 
-    void Container::changeLockLevel(const MWWorld::Ptr& ptr, int lockLevel, bool doLock) {
-        if (lockLevel<0)
-            lockLevel = 0;
-
-        ptr.getCellRef().mLockLevel = lockLevel;
-        if(doLock) lock(ptr);
-    }
 
     MWWorld::Ptr
     Container::copyToCellImpl(const MWWorld::Ptr &ptr, MWWorld::CellStore &cell) const
diff --git a/apps/openmw/mwclass/container.hpp b/apps/openmw/mwclass/container.hpp
index 6945ae441..f012d675c 100644
--- a/apps/openmw/mwclass/container.hpp
+++ b/apps/openmw/mwclass/container.hpp
@@ -48,15 +48,12 @@ namespace MWClass
             ///< Returns total weight of objects inside this object (including modifications from magic
             /// effects). Throws an exception, if the object can't hold other objects.
 
-            virtual void lock (const MWWorld::Ptr& ptr, int lockLevel = -999) const;
+            virtual void lock (const MWWorld::Ptr& ptr, int lockLevel = 0) const;
             ///< Lock object
 
             virtual void unlock (const MWWorld::Ptr& ptr) const;
             ///< Unlock object
 
-            ///Changes the lock level of the object
-            virtual void changeLockLevel(const MWWorld::Ptr& ptr, int lockLevel, bool lock=true);
-
             virtual void readAdditionalState (const MWWorld::Ptr& ptr, const ESM::ObjectState& state)
                 const;
             ///< Read additional state from \a state into \a ptr.
diff --git a/apps/openmw/mwclass/door.cpp b/apps/openmw/mwclass/door.cpp
index e9f384572..984e21e72 100644
--- a/apps/openmw/mwclass/door.cpp
+++ b/apps/openmw/mwclass/door.cpp
@@ -158,22 +158,15 @@ namespace MWClass
 
     void Door::lock (const MWWorld::Ptr& ptr, int lockLevel) const
     {
-        ptr.getCellRef().mLockLevel = abs(ptr.getCellRef().mLockLevel); //Makes lockLevel positive;
-        if(lockLevel>=0) //Lock level setting left as most of the code relies on this
-            ptr.getCellRef().mLockLevel = abs(lockLevel);
-    }
-
-    void Door::changeLockLevel(const MWWorld::Ptr& ptr, int lockLevel, bool doLock) const{
-        if (lockLevel<0)
-            lockLevel = 0;
-
-        ptr.getCellRef().mLockLevel = lockLevel;
-        if(doLock) lock(ptr);             //A change in lock level almost always nesesitates a lock
+        if(lockLevel!=0)
+            ptr.getCellRef().mLockLevel = abs(lockLevel); //Changes lock to locklevel, in positive
+        else
+            ptr.getCellRef().mLockLevel = abs(ptr.getCellRef().mLockLevel); //No locklevel given, just flip the origional one
     }
 
     void Door::unlock (const MWWorld::Ptr& ptr) const
     {
-        ptr.getCellRef().mLockLevel = -abs(ptr.getCellRef().mLockLevel); //Makes lockLevel positive
+        ptr.getCellRef().mLockLevel = -abs(ptr.getCellRef().mLockLevel); //Makes lockLevel negative
     }
 
     std::string Door::getScript (const MWWorld::Ptr& ptr) const
@@ -217,6 +210,8 @@ namespace MWClass
 
         if (ref->mRef.mLockLevel > 0)
             text += "\n#{sLockLevel}: " + MWGui::ToolTips::toString(ref->mRef.mLockLevel);
+        else if (ref->mRef.mLockLevel < 0)
+            text += "\n#{sUnlocked}";
         if (ref->mRef.mTrap != "")
             text += "\n#{sTrapped}";
 
diff --git a/apps/openmw/mwclass/door.hpp b/apps/openmw/mwclass/door.hpp
index e053136d5..bddc46728 100644
--- a/apps/openmw/mwclass/door.hpp
+++ b/apps/openmw/mwclass/door.hpp
@@ -36,15 +36,12 @@ namespace MWClass
             static std::string getDestination (const MWWorld::LiveCellRef<ESM::Door>& door);
             ///< @return destination cell name or token
 
-            virtual void lock (const MWWorld::Ptr& ptr, int lockLevel = -999) const;
+            virtual void lock (const MWWorld::Ptr& ptr, int lockLevel = 0) const;
             ///< Lock object
 
             virtual void unlock (const MWWorld::Ptr& ptr) const;
             ///< Unlock object
 
-            ///Change the lock level
-            virtual void changeLockLevel(const MWWorld::Ptr& ptr, int lockLevel, bool lock=true) const;
-
             virtual std::string getScript (const MWWorld::Ptr& ptr) const;
             ///< Return name of the script attached to ptr
 
diff --git a/apps/openmw/mwmechanics/spellcasting.cpp b/apps/openmw/mwmechanics/spellcasting.cpp
index db8daff15..9a6cd6b89 100644
--- a/apps/openmw/mwmechanics/spellcasting.cpp
+++ b/apps/openmw/mwmechanics/spellcasting.cpp
@@ -420,20 +420,20 @@ namespace MWMechanics
         {
             if (effectId == ESM::MagicEffect::Lock)
             {
-                target.getCellRef().mLockLevel = abs(target.getCellRef().mLockLevel); //Makes lockLevel positive
-                if (target.getCellRef().mLockLevel < magnitude)
+                if (target.getCellRef().mLockLevel < magnitude) //If the door is not already locked to a higher value, lock it to spell magnitude
                     target.getCellRef().mLockLevel = magnitude;
             }
             else if (effectId == ESM::MagicEffect::Open)
             {
                 if (target.getCellRef().mLockLevel <= magnitude)
                 {
+                    //Door not already unlocked
                     if (target.getCellRef().mLockLevel > 0)
                     {
                         MWBase::Environment::get().getSoundManager()->playSound3D(target, "Open Lock", 1.f, 1.f);
                         MWBase::Environment::get().getMechanicsManager()->objectOpened(caster, target);
                     }
-                    target.getCellRef().mLockLevel = -abs(target.getCellRef().mLockLevel);
+                    target.getCellRef().mLockLevel = -abs(target.getCellRef().mLockLevel); //unlocks the door
                 }
                 else
                     MWBase::Environment::get().getSoundManager()->playSound3D(target, "Open Lock Fail", 1.f, 1.f);
diff --git a/apps/openmw/mwscript/miscextensions.cpp b/apps/openmw/mwscript/miscextensions.cpp
index bc71cc494..20013493f 100644
--- a/apps/openmw/mwscript/miscextensions.cpp
+++ b/apps/openmw/mwscript/miscextensions.cpp
@@ -132,7 +132,7 @@ namespace MWScript
                     MWWorld::Ptr ptr = R()(runtime);
 
                     Interpreter::Type_Integer lockLevel = ptr.getCellRef().mLockLevel;
-                    if(lockLevel==-999) { //no lock level was ever set, set to 100 as default
+                    if(lockLevel==0) { //no lock level was ever set, set to 100 as default
                         lockLevel = 100;
                     }
 
diff --git a/apps/openmw/mwworld/class.cpp b/apps/openmw/mwworld/class.cpp
index 4b3d40ab7..f20c5f6d2 100644
--- a/apps/openmw/mwworld/class.cpp
+++ b/apps/openmw/mwworld/class.cpp
@@ -137,11 +137,6 @@ namespace MWWorld
         throw std::runtime_error ("class does not support locking");
     }
 
-    void Class::setLockLevel (const Ptr& ptr, int lockLevel) const
-    {
-        throw std::runtime_error ("class does not support setting lock level");
-    }
-
     void Class::unlock (const Ptr& ptr) const
     {
         throw std::runtime_error ("class does not support unlocking");
diff --git a/apps/openmw/mwworld/class.hpp b/apps/openmw/mwworld/class.hpp
index dc06bf6c9..27b842348 100644
--- a/apps/openmw/mwworld/class.hpp
+++ b/apps/openmw/mwworld/class.hpp
@@ -165,8 +165,6 @@ namespace MWWorld
             virtual void lock (const Ptr& ptr, int lockLevel) const;
             ///< Lock object (default implementation: throw an exception)
 
-            virtual void setLockLevel(const Ptr& ptr, int lockLevel) const;
-
             virtual void unlock (const Ptr& ptr) const;
             ///< Unlock object (default implementation: throw an exception)
 
diff --git a/components/esm/cellref.cpp b/components/esm/cellref.cpp
index 699d326ee..f04e819c8 100644
--- a/components/esm/cellref.cpp
+++ b/components/esm/cellref.cpp
@@ -54,7 +54,7 @@ void ESM::CellRef::load (ESMReader& esm, bool wideRefNum)
     else
         mTeleport = false;
 
-    mLockLevel = -999; //Set to impossible value to indicate no lock
+    mLockLevel = 0; //Set to 0 to indicate no lock
     esm.getHNOT (mLockLevel, "FLTV");
 
     mKey = esm.getHNOString ("KNAM");
@@ -114,7 +114,7 @@ void ESM::CellRef::save (ESMWriter &esm, bool wideRefNum, bool inInventory) cons
         esm.writeHNOCString("DNAM", mDestCell);
     }
 
-    if (mLockLevel != -999 && !inInventory) {
+    if (mLockLevel != 0 && !inInventory) {
             esm.writeHNT("FLTV", mLockLevel);
     }