L200 Heater not working

[Norfolk Hill Farmer]

Fan blowing fine but I can only get cold air. Does anyone know what I should be look for to repair it ?

 

[Wesley]

Might sound obvious but check the coolant level first.

 

[Mur Huwcun]

As above have you got enough coolant in? Is the engine getting warm? Could someone have taken thermostat out? What colour or state is the coolant? If it’s dirty it could have blocked the heater matrix, is the matrix getting warm? Find the two supply and return hoses under the bonnet

 

[Norfolk Hill Farmer]

Ah yes I didn’t think of that will have a look.

Might sound obvious but check the coolant level first.

 

[Neil MP]

Fan blowing fine but I can only get cold air. Does anyone know what I should be look for to repair it ?

A head gasket

 

[Norfolk Hill Farmer]

The head gasket has gone ( I think ) it pressurises the coolant if I put the trailer on and go any distance. Fine without the trailer 2007 so not worth doing any major repairs.

 

[JPB]

Mine did exactly same thing, then the battery started going flat so I put a new battery on and ever since that it has been fine. Not sure if disconnecting the power did some sort of reset to the heater control

 

[Pistonbroke]

The head gasket has gone ( I think ) it pressurises the coolant if I put the trailer on and go any distance. Fine without the trailer 2007 so not worth doing any major repairs.

Coolant will pressurise when hot anyway so trailer work will always be more than without. Head gasket will do it regardless unless it's a minor leak. Sealant might stop a minor one

 

[Norfolk Hill Farmer]

On investigation the coolant had disappeared. I did check it regularly because of the trucks head gasket issue, however it does seem a leek has developed in the radiator. Will try some rad seal today hopefully that will work, but it is a leak rather than a drip.

 

[michael N123]

Mine got a leak in the radiator and destroyed the head gasket

Spent a fortune repairing it and probably should of just scrapped it