Radiator Fan won't come on
 

Hoping someone can help. The radiator fan on my 1990 Honda Accord won't come on while the engine is running. As the car starts to get hot, and the needle on my temperature gauge starts rising toward the H, the fan does not come on.
I have replaced switch A, the switch that controls the radiator fan. I have checked all the fuses, and all the relays, no luck. The fan still does not come on while the engine is running hot.
What else can I check, and can I replace them? I've been driving with the heat on to keep the temperature normal.
Thanks

there is two fan switches on that model... Have you tried to jump the connector on the fan switch near the thermostat housing to see if the fans come on then? Put battery voltage to the fan itself? Just a couple ideas