MY 2002 FORD FOCUS WAGON ZTW HEATER STOPPED WORKING . COULS IT BE THE FUSE OR WILL I NEED TO REPLACE THE HEATER AT WHAT COST?

I have 2002 ford focus ztw station wagon, I have done major tune ups done at OMNI ford, including replacing oxygen sensor, EGR valve . it only give me 240 km per tank and I don't know what else need to be done on it. I have also cleaned the MAS/Maf sensor etc. ant suggestion to get better gas mileage. apprecaite your professional suggestions. Thanks

ike

Yes it could be a fuse. You need a test light or volt meter to test.
A fuse goes bad because of an overload of amps, or a short. (A bad fan motor can short out). Check all fuses. (See the owners manual for locations) If all is good, you need to see if you get voltage to the fan motor. If the fuse is blown, or bad, replace it and try it again, if it blows again, unplug the heater fan and then try another fuse. If it doesn't go bad, the motor may be bad. Cost will depend on what you can do yourself.