If the red wire is not needed, it should be safely capped or insulated to prevent any electrical hazards.
You Should Cut The Yellow Wire! : D
When connecting a battery, the red wire should be attached first.
Color coding is different for different pieces of equipment. More information is needed.
It should be RED. If not then black.
No. Green should always signify the ground wire.
If wired correctly the red wire will be hot, but any wire can be hot regardless of colour if done incorrectly.
the black wire is A phase, the red wire is B phase, and the white wire is the neutral. Black should have around 120 volts. Red should have 120 volts, and should add up to 240 volts with a multi meter.
The red wire on a ceiling fan is typically used to connect the fan's light kit. It carries the electrical current needed to power the lights on the fan.
When setting up an electrical circuit, it is recommended to connect the black wire first before connecting the red wire.
In the heater you will have two wires. You should then have 2 supply wires from the panel, and 2 wires from the thermostat. The neutral (white) supply wire should go to one of the wires on the heater. The hot (black) supply wire should connect to one wire from the thermostat. The other wire from the thermostat will connect to the other wire from the heater.
When connecting the red wire to the white wire in a water heater wiring setup, ensure that the red wire is securely connected to the terminal marked for the white wire. It is important to follow the manufacturer's instructions and consult a professional if unsure.
You have a 3 way switch. Your black wire is the hot wire. Your green wire is the ground wire. Your red and white wires go to the light and other switch. You should have gotten a wiring diagram with your switch.