Hi all, I have a bit of a puzzle here. Have a 91 Mayfair, but I am getting no heat delivered inside the car. I have checked for blockages, airlocks, removed and checked heater matrix, changed the thermostat but still no joy. The pipes to the matrix are both heating up, but with the fan on it blows out a very slightly warm flow of air.
There is plenty of heat being produced, outside the car I can feel a lovely hot airflow being pushed through the rad ( by the way the engine fan is constantly on?).