I'm no plumber, but I would imagine that (if the hot faucet is giving you cold water) that the hot and cold pipes leading into the bathroom have been somehow switched.
Odds are that the cold water lines to the faucet you are trying to use are shut off but the hot water lines coming from the water heater are not. That is why you have hot water but no cold water.
Because hot water is still in the pipes from when you turned on the hot water, and when you turned on the cold faucet it had to let out the hot water first. This means you have a single-pipe sink. Double-pipe sinks have a pipe for hot and a pipe for cold and it blends them as it turns on.
If you are not living in the desert where the cold water is hot during the summer, check to see if perhaps the plumbing is backwards: is the hot water faucet giving cold water? I once had hot water in my toilets.
If water is only drawn from the cold faucet, then no, the water heater is not involved. However, if water is drawn from the hot faucet- even for a few seconds- hot water IS withdrawn from the heater, and fresh cold water drawn in to be heated- even if the hot water did not make it all the way through the pipe to the faucet- and the water heater will work to heat that fresh cold water.
The faucet opening screw thread is stripped, the faucet washer has collapsed, the pipe is furred up, the boiler has a problem
This occurs when your hot water heater is either broken, disconnected, or has exhausted its supply of heated water. In cold weather, heated water may be cooling in the pipes on the way to the faucet, especially when it has just been turned on.
Do you have hot water at other fixtures in the house? If not you have a water heater problem. If yes the Shower valve needs to be rebuilt if it is a bressure balanced faucet the concentration should be on the pressure balancing spool area of the faucet.
true, the water is going to get hot either if you use cold or hot water You did not answer my question of if it was "true" or a "myth" that the water had to be from the cold water faucet. From what you did respond to it sounds as if the question I generated means it is a myth that the water "has" to be from the cold water facuet.
Yes. If you can attach a y to your cold water line, split it and run cold into both cold and hot Hopkins on the faucet.Yes , by blocking off the supply to the H/W side of the faucet and only connecting the C/W UNLESS it is a temperature or pressure balance type.
You need to replace the valve that redirects water from the tub's faucet to the shower head .
Kitchen faucet? If so, the sprayer attaches to the underside of the faucet in the middle.
Burn your tongue and throat is about the only issue. Hot faucet water is no different than cold water you heat on the stove or drink in your coffee.
Make the hot and cold connection, open the hot side of a faucet and turn the water on. As the tank fills, the air will come out the faucet until the tank is full.
You have a cross connection on a faucet somewhere in the house. That means the hot is overriding the cold because of a malfunctioning faucet. Usually happens at the tub/shower diverter if it is a single handle.
because there no backflow perventer on laves and toilets
The water pipes are full of cold water. All that cold water has to be flushed from the pipes before the hot water from the tank reaches your faucet.
Hot water tank not working or a faulty faucet.
Yes, it can also cross through a two handled faucet. Both the hot and cold sides of the faucet must be on and the flow of water must be stopped or greatly reduced on the outlet side of the faucet. This can occur when a hose with a spray nozzle is attached to a laundry tub faucet with the faucet on and the spray nozzle off, or when a shower faucet is on but the shower spray head is off. When another cold water outlet in the system is turned on then the pressure on the cold side of the laundry tub or shower faucet in question could be lowered below the pressure on the hot side and hot water can flow into the cold water side. There are faucets which have integral check valves which prevent this from occurring. WWW.WOODBRIDGEPLUMBING.COM
right is cold, left is hot
You may need to flush out your hot water heater, there mey be alot of sediment in the tank.
By replacing the defective parts after shutting off the hot and cold water supply
Rust popped off inside the pipe and plugged the faucet.
Hot water backfeeds from water heater into cold water lines due to expansion of hot water. Usually occurs when a faucet hasn't been opened for awhile, letting hot water backfeed through system.