What kind of fan? :)
Oil pressure test.
To troubleshoot a 4 wire ceiling fan switch that is not working properly, first turn off the power to the fan. Then, check the wiring connections to ensure they are secure and properly connected. Next, use a multimeter to test the switch for continuity to see if it is functioning correctly. If the switch is faulty, it may need to be replaced. If the switch is not the issue, further troubleshooting may be needed to identify the problem.
You can either unplug the connectors and send a separate power and ground to the fan or you can scan the vehicles computer and see if they are working but if they are original, then after 9 years you should replace them anyway........
To check and make sure your smoke detector is working you can test them or check and see if there a green light meaning they are working. Its better to test them. If you have had a power outage recently they could be dying.
hi,remove the wires from the thermo switch that tells the fan when to work and bridge them together,fan shoul work with ign on,if not faulty.
Fuel pressure test is the only sure way.
A simple test to know if the car computer is working.?æ Identify your sensor and turn on the ignition to see if the sensor confirms the car's computer.
no if it does not work just take it in to get it fixed
start by checking for a vacuum problem. check to see if blend door is working properly.
To test a 1995 Cavalier crank sensor you would need to get a mechanic's computer. They can put a sensor/fuse tester on it and see if it is working properly.
hook wires from your 12 v battery straight to the fan motor and see if it comes on.
It is good to contact a professional. They use a special dye that they run through the lines and out to the tank. If none of the dye makes it above ground, it is working.