Thermocouple. Keep pilot knob depressed for 30 seconds after lighting pilot.
Have you turned the control from Pilot to On? Have you increased the temperature setting?
THERMOCOUPLE or defective gas valve
The flame detector on the pilot assembly is probably defective. If you do not know how to fix this, call you gas supplier and have it repaired.
Check the starting directions, most gas heater pilots must have the button depressed for more than 30 seconds. If this does not work there is a problem with the regulator.
Most likely the thermocouple is bad. The thermocouple is the little tube that sits in the flame of the pilot light. Runs from the pilot light to the control valve. Very simple to replace. Costs about $6.
The thermocouple is bad. The thermocouple is the small metal tube that sits in the pilot light flame and runs to the control valve. The thermocouple generates a very small electrical current that keeps the gas valve open. They go bad regularly. **** I would have to say to check to make sure the valve is not in the "Pilot" position. If it is then turn it to the "On' position. If it still isn't working then you may have a bad Gas Control Valve. If the thermocouple was bad the pilot light would not stay lit. If the pilot light stay lit, it is doing what it is supossed to do.
Electronic ignition refering to it having a sparker to light the pilot light? That just lights the pilot, there is still a thermocouple that controls the gas valve. The thermocouple is the small tube that sits in the pilot flame and runs to the control valve. To replace, you will need to remove the cover plate, gas line, thermocouple, and sparker wire as a unit and replace the thermocouple once you have it out and them re-install the unit.
Low coolant level? Cooling system airbound? Bad thermostat? Water pump not circulating coolant? Heater control cable not working?
You might have to try pushing the button for longer, or you might have a bad thermocouple.
check these in order, thermostat,heater coil,water pump,oil pump and main crank bearings.
Because it has no food and water so it wont stay alive
you have a bad heater core