diff --git a/src/finiteVolume/fields/fvPatchFields/derived/timeVaryingMappedFixedValue/timeVaryingMappedFixedValueFvPatchField.C b/src/finiteVolume/fields/fvPatchFields/derived/timeVaryingMappedFixedValue/timeVaryingMappedFixedValueFvPatchField.C
index f613a7e6a2..6ea997f3fd 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/timeVaryingMappedFixedValue/timeVaryingMappedFixedValueFvPatchField.C
+++ b/src/finiteVolume/fields/fvPatchFields/derived/timeVaryingMappedFixedValue/timeVaryingMappedFixedValueFvPatchField.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -343,6 +343,18 @@ void timeVaryingMappedFixedValueFvPatchField<Type>::checkTable()
                 )
             );
 
+            if (vals.size() != mapperPtr_().sourceSize())
+            {
+                FatalErrorIn
+                (
+                    "timeVaryingMappedFixedValueFvPatchField<Type>::"
+                    "checkTable()"
+                )   << "Number of values (" << vals.size()
+                    << ") differs from the number of points ("
+                    <<  mapperPtr_().sourceSize()
+                    << ") in file " << vals.objectPath() << exit(FatalError);
+            }
+
             startAverage_ = vals.average();
             startSampledValues_ = mapperPtr_().interpolate(vals);
         }
@@ -388,6 +400,19 @@ void timeVaryingMappedFixedValueFvPatchField<Type>::checkTable()
                     false
                 )
             );
+
+            if (vals.size() != mapperPtr_().sourceSize())
+            {
+                FatalErrorIn
+                (
+                    "timeVaryingMappedFixedValueFvPatchField<Type>::"
+                    "checkTable()"
+                )   << "Number of values (" << vals.size()
+                    << ") differs from the number of points ("
+                    <<  mapperPtr_().sourceSize()
+                    << ") in file " << vals.objectPath() << exit(FatalError);
+            }
+
             endAverage_ = vals.average();
             endSampledValues_ = mapperPtr_().interpolate(vals);
         }
diff --git a/src/fvMotionSolver/pointPatchFields/derived/timeVaryingMappedFixedValue/timeVaryingMappedFixedValuePointPatchField.C b/src/fvMotionSolver/pointPatchFields/derived/timeVaryingMappedFixedValue/timeVaryingMappedFixedValuePointPatchField.C
index 1fa44b5d64..8bca126f9b 100644
--- a/src/fvMotionSolver/pointPatchFields/derived/timeVaryingMappedFixedValue/timeVaryingMappedFixedValuePointPatchField.C
+++ b/src/fvMotionSolver/pointPatchFields/derived/timeVaryingMappedFixedValue/timeVaryingMappedFixedValuePointPatchField.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -313,6 +313,18 @@ void Foam::timeVaryingMappedFixedValuePointPatchField<Type>::checkTable()
                 )
             );
 
+            if (vals.size() != mapperPtr_().sourceSize())
+            {
+                FatalErrorIn
+                (
+                    "timeVaryingMappedFixedValuePointPatchField<Type>::"
+                    "checkTable()"
+                )   << "Number of values (" << vals.size()
+                    << ") differs from the number of points ("
+                    <<  mapperPtr_().sourceSize()
+                    << ") in file " << vals.objectPath() << exit(FatalError);
+            }
+
             startAverage_ = vals.average();
             startSampledValues_ = mapperPtr_().interpolate(vals);
         }
@@ -357,6 +369,19 @@ void Foam::timeVaryingMappedFixedValuePointPatchField<Type>::checkTable()
                     false
                 )
             );
+
+            if (vals.size() != mapperPtr_().sourceSize())
+            {
+                FatalErrorIn
+                (
+                    "timeVaryingMappedFixedValuePointPatchField<Type>::"
+                    "checkTable()"
+                )   << "Number of values (" << vals.size()
+                    << ") differs from the number of points ("
+                    <<  mapperPtr_().sourceSize()
+                    << ") in file " << vals.objectPath() << exit(FatalError);
+            }
+
             endAverage_ = vals.average();
             endSampledValues_ = mapperPtr_().interpolate(vals);
         }
diff --git a/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.C b/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.C
index 9f8a6a5179..bc1402bd7a 100644
--- a/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.C
+++ b/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -222,7 +222,8 @@ Foam::pointToPointPlanarInterpolation::pointToPointPlanarInterpolation
 )
 :
     perturb_(perturb),
-    referenceCS_(calcCoordinateSystem(sourcePoints))
+    referenceCS_(calcCoordinateSystem(sourcePoints)),
+    nPoints_(sourcePoints.size())
 
 {
     calcWeights(sourcePoints, destPoints);
@@ -238,7 +239,8 @@ Foam::pointToPointPlanarInterpolation::pointToPointPlanarInterpolation
 )
 :
     perturb_(perturb),
-    referenceCS_(referenceCS)
+    referenceCS_(referenceCS),
+    nPoints_(sourcePoints.size())
 {
     calcWeights(sourcePoints, destPoints);
 }
diff --git a/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.H b/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.H
index daec2e4688..e3428d80fe 100644
--- a/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.H
+++ b/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -59,6 +59,9 @@ class pointToPointPlanarInterpolation
         //- Coordinate system
         coordinateSystem referenceCS_;
 
+        //- Number of source points (for checking)
+        label nPoints_;
+
         //- Current interpolation addressing to face centres of underlying
         //  patch
         List<FixedList<label, 3> > nearestVertex_;
@@ -114,6 +117,12 @@ public:
             return referenceCS_;
         }
 
+        //- Number of source points
+        label sourceSize() const
+        {
+            return nPoints_;
+        }
+
         //  patch
         const List<FixedList<label, 3> >& nearestVertex() const
         {
diff --git a/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolationTemplates.C b/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolationTemplates.C
index 9159a03edd..f17f249d13 100644
--- a/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolationTemplates.C
+++ b/src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolationTemplates.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -33,6 +33,17 @@ Foam::tmp<Foam::Field<Type> > Foam::pointToPointPlanarInterpolation::interpolate
     const Field<Type>& sourceFld
 ) const
 {
+    if (nPoints_ != sourceFld.size())
+    {
+        FatalErrorIn
+        (
+            "pointToPointPlanarInterpolation::interpolate"
+            "(const Field<Type>&) const"
+        )   << "Number of source points = " << nPoints_
+            << " number of values = " << sourceFld.size()
+            << exit(FatalError);
+    }
+
     tmp<Field<Type> > tfld(new Field<Type>(nearestVertex_.size()));
     Field<Type>& fld = tfld();