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depends on whether thermo used on gas or elec. unit, heat pump, strip heat, etc.

red wire is hot wire.

White wire goes to heat.

yellow wire goes to outdoor unit contactor.

green wire goes to indoor fan.

blue or brown wire goes to reversing valve on outdoor unit.

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12y ago

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What do you do with the ground wire when installing a new thermostat that doesn't have a connection for the ground wire It's a 4 wire Honeywell thermostat Is it ok to not connect the ground wire?

That Thermostat is LOW voltage. IT does not have a ground wire. There is no need for a ground. it only opperates on 24 volts. there may be a green wire but it does not mean it is a ground


What is wrong if you have a digital thermostat in your house with zoned heat and air and the heat and air work fine on the thermostat upstairs but there is no heat on the downstairs?

There is either a problem with the downstairs thermostat, or the wiring from that thermostat to the unit. First check the batteries in the thermostat. Yes the digital ones have batteries. :-) Next, if that doesn;t fix it, try switching your two thermostats. Be careful to wire them exactly as they were before. If your heat now works downstairs and not upstairs, replace the thermostat. If the problem remains unchanged and you still have heat up and not down - check your thermostat wiring. The voltage is low so a simple voltmeter can be used to confirm continuity from the end where it goes into the furnace to the end where it connects to the thermostat. If the wire checks out and the problem is not the thermostat, then call a licnesed professinal - youhave bigger problems.


Decscribe the structure of an electromagnet?

Okay - it's going to be difficult to do an accurate diagram on here - so bear with me...An electromagnet consists basically of a piece of metal surrounded by a coil of wire, which is connected to a power source. The simplest form would be an iron rod which has a piece of wire wrapped around it (about ten) coils should do it. The ends of the wire are attached to a 9 volt battery.Ignore the dots in the following diagram - they're just to stop the spaces being removed by the forum !...____|+ -|____| ................... || ................... ||___/\/\/\____|It's a bit crude - but I think it's understandable. Basically, you connect the battery (+ -) with a continuous piece of wire. Wrap the wire around an iron rod - the '/\/\/\'. This induces a current in the rod, while the power is connected. Snakester1962 (Supervisor)


How can you tell if the wires of the dishwasher are grounded?

To check if the wires of a dishwasher are grounded, first ensure the appliance is unplugged or the circuit breaker is turned off. Use a multimeter to measure the voltage between the ground wire and a known live wire; if the reading shows voltage, the grounding is likely intact. Additionally, inspect the grounding wire connections to ensure they are secure and properly attached. If you're uncertain, it's best to consult a licensed electrician for a thorough inspection.


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I was a soldier so I dealt with both types alot. Constantina wire has sharp little squares where as razor wire has bigger razor blade shaped barbs.

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