We just remodeled our bathroom and put in a new Heater/Vent/Light in the ceiling. The vent and light work just fine, but the heater won't work. The heater will work when wired to the other wires, but when wired to where it is suppose to go, it won't work. Any help. Thanks.

The intended wires must be dead, and all you can do is troubleshoot with a volt tester to find where the voltage stops. Start with at the switch, making sure there is power feeding the switch, and leaving the switch. Be sure to check across a hot leg and the neutral going to the heater, as just as a hot wire can have a broken splices or connection so can the white neutral.