we just moved into a new house and we are trying to make this unit work properly. the unit has a light, heat coils with a fan, and separate exhaust fan. I cannot easily access the top of the unit to find a manufacturer or model. there is one 3 wire plus ground (white, black, red, & bare) going from the unit to the switch box. the single switch box has 3 single pole switches. my question is: can i independently operate the light, heat, and exhaust with the existing 3 wire plus ground and the 3 single pole switches? if so, how? if need be, i won't mind needing the light to be on to operate either fan. do these light/heat/exhaust units typically come wired the same, or do i need to really pull it down to examine its internal wiring. thanks and sorry if this topic came up recently but my search didn't really help much.

I have a ceiling fan installed in a bedroom and only the fan is working. there is no remote control, only a regular wall switch. I replaced the switch thinking that that might be the problem. i even checked the wires in the cieling that connect to the fan and made sure that htey were secure and connected. The light works only once in a while. I have not been able to determine at this point when or why it works. There is a chain to control the light and one for the fan hanging from the fixture. I checked and the one for the light does nothing for sit. THe chain for the fan however works like it should. We need to use the light in the room and now that it is getting dark early, it is getting difficult to use the room, any help is appreciated. Is it possible that the wires in the cieling do not have enough power for the cieling fan and light?