There is no water coming out of any faucets in nor outside house temperature outside is 24degrees. pipes are frozen, but where? at the point of entry into house? should we shut off water supply? we have city water service no well

Open up the shower head so its open put heat it to room to help defrost lines . Or use a blow lamp on line to defrost or use heat tape

yes probably...one thing to do is to remove the aerator's
from them open them up and see what happens. don't close them cuz if it's warming up we hope... it'll help them flow better to get the water moving thru the pipes.
if it is just one open the vanity doors, or any doors that contain the fixture plumbing. let some heat get in there.
is water ok running in other areas? or whole house?

Be ready to turn off the water to the house. It is highly possible that the freeze has burst the pipes. You won't know until they thaw. You could have a house full of water then...
You are doing all the right things. Open a faucet that the pipe goes to, and continue to apply heat. the pressure in the pipe will eventually push the slush out of the faucet.
How cold is it? Is the pipe on an outside wall? Can you see the pipe?

1) Clogged pipe?
Bad faucet cartridge?
Take apart pipe at shut off and see if there is water.
http://waterheatertimer.org/Low-hot-water-pressure.html

2) Add a comment and say what you find.

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Ok I see your re-post.
If I understand correctly, no water is coming out of any faucet.

No cold water and no hot water.

1) First of all, cold water side of water system is totally unaffected by recirculation pump or timer on recirculation pump. Faucets are connected directly to cold water line that enters house from outside, and that line does not come in contact with recirculation pump.
2) If you have no cold water, check with neighbors to see if they have water.
3) Next, go outside and check ALL outdoor spigots and see if water comes out.
4) Is it possible that you have a frozen water pipe?

Do some checking and then repost another question.
I will be here until you get it fixed.

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Have you checked for a major leak in the line bringing the water to your house or under the house where the line comes in? Or is it a case of the pipes being frozen? Because you did say. If it is frozen pipes leave the faucets turned on half way, because when they thaw, you don't want to much air and water rushing out at one time and going places you don't want it to.

Hi,
Yes... the water pipe is probably frozen... take a hair dryer and focus the heat on the piping...moving it back and forth along the piping to thaw it out...

heatman101

Do you have a well or city water? If it is a well and you have a well house with no heat it could be there.

If it is your drain line frozen there must be a clog in the line somewhere because drain lines should never hold water. If it is a trap or goose neck under your house or trailer, you can carefully thaw them with a propane torch very slowly, or a Heat Gun very slowly, or even a Blow Dryer. After the trap or gooseneck is thawed out, run some hot water until your drain works as it used to. Then you can put Heat Tape on the trap so it does not happen again. Use the proper heat tape rated for metal or PVC plasic pipe according to instructions. Disconnect the electrical supply for the Heat Tape in the Spring as weather permits.....Joe