Mazen, the error code will be H3 - 00. This means High Temperature in the heater section, proberbly caused by a faulty thermistor.
Firstly try a reset, please press the following buttons IN SEQUENCE:-
Program - Interrupt - Clear - Interrupt - 1 - 4 - Print.
If this cures the fault, your good to go, if not you'll need to replace the part.
Luke S, February 2008