What do you mean by "has no heat"? No air blowing out, blowing out cold air when heater is on, blowing nothing at all? Heater not turning on? What specifically is happening?
One reason your home electric heater is blowing cold air is the heating elements are burned out. A bad thermostat may also be the problem.
Maybe its broken. Or maybe you pressed the AIR CONDITIONING
because u pooped in it
Most likely your pilot light is out
You may need to replace your Thermostat or your Heater Core.
did you check the heater core because my truck did that and that was what was wrong
One of the reasons a 2000 Jeep Cherokee heater would randomly blow cold air and then hot air and then cold might be that there is a problem with the hot/cold duct. The air or a vent might be inadvertently blowing periodically.
it is blocked and needs to be flushed out
You need to change your thermostat in the car.
If you are saying the heater is blowing out cold air you need to change the heater core which is located inside the dash
The most common reason the heater is blows cold air on a 1999 Ford Winstar is a bad thermostat or blocked heater core.