Are you tired of taking icy-cold showers every morning? Does the thought of washing dishes with frigid water make you cringe? You’re not alone if you have cold water but no hot water in your house!
This frustrating situation can be caused by several issues, from a malfunctioning water heater to a broken thermostat.
Identifying the specific cause of the problem is important to determine the best course of action for resolving it.
To diagnose and fix the issue, it’s recommended to contact a licensed plumber or HVAC technician who can identify the specific cause of the problem and recommend the best course of action.
We’ll explore some common reasons why you may have no hot water in your house and some possible solutions to the problem.
Is The Problem With The Hot Water?
The cold water coming from the tap could be coming from your water heater, especially if the cold side is working. Several factors may cause a water heater that does not heat up properly.
The problem could be a leak, sediment buildup, or an unplugged drain. You can fix the problem by flushing the water heater. You can try using the faucet again once it has cooled off and heated up again.
Why Do I Have Cold Water But No Hot Water?
In the first instance, look for obvious causes. Check to see that the boiler or water heater is running correctly, and the water supply is on before making any decisions.
It is possible that the gas or electric boiler in your house will not have a power connection, which will leave your house without hot water. There is also a possibility that the gas or electric boiler has been turned off.
In this case, there may be a reset switch on the system that allows you to reset the boiler. In this case, the thermostat is likely set incorrectly because there is only cold water.
1. Faulty Heating Element
When you don’t get hot water in your house, you might have a problem with the heating elements.
Replace an old water heater rather than repair an old one since water heaters only last 10 years. Turning off your water heater completely before replacing your heating elements is still important.
2. Thermostat Malfunction
The thermostat of a water heater should be set between 122- and 140-degrees Fahrenheit to produce heated water but be energy efficient.
It is recommended to adjust the upper thermostat if the hot water supply is insufficient or too hot. It is recommended that the thermostat be replaced if it is damaged.
Even with a proper thermostat, sediment can accumulate over time and cause problems due to a lack of regular maintenance. If you want to eliminate this problem, drain and clean your water heater.
A tripped high-temperature cutoff switch is among the most common reasons why no hot water comes into your home. A switch and a button can be flipped or pushed to repair it.
After you press the reset button, you should hear a clicking sound, and then the water heater will be powered on again. A high-temperature cutoff that requires replacement probably results from not restoring the electricity.
3. Electric Water Heater Malfunction
If you have an electric or gas heater, you don’t need to wake up without hot water in your home. As is obvious, the electric version is powered by electricity via its own dedicated circuit.
An electrical problem may cause your water heater issue, not the water heater itself. It is also possible to test this idea by substituting a wall outlet with another electric device that contains its battery backup.
If you switch power sources and do not see any heated taps, you do not have any electricity flowing to your electric water heater.
There are several ways to resolve problems related to a lack of hot water, including checking for loose connections to the water heater and resetting any circuit breakers that may have been the cause of the problem.
When the breaker trips again, warm water will be supplied to your home after an hour.
In the case of a bad signal, the circuit breaker maintains a trip, so you should push the reset button. Obtain the services of a qualified electrician if there’s still a problem.
4. The Pilot Light is Out
Water heater pilot lights can go out if your hot water faucets are not heating.
No hot water heating system or no heated storage unit might not have sufficient gas pressure to produce any kind of no-hot water temperature before a certain temperature threshold is reached, which could take several hours.
It is usually evident that the pilot light has gone out when this happens. Although most modern heaters no longer have pilot lights, you should be aware that many now use glow plugs or spark ignitors instead.
In this case, please contact a technician or refer to the owner’s manual for advice on how to fix it.
Check the burner for marks to ensure your water heater has a pilot light. The following technique can help you find one if you cannot find any!
- A long lighter is all you need if you need to relight the pilot. As you hold your lighter over your gas supply tube, turn it on. Your pilot light should be lit using this method.
- In the case that your water heater has self-ignition capabilities, you should hold down the ignition knob for at least 60 seconds before lighting it. Your regulator needs to be set to “on” after that.
- Wait five minutes or more for the gas to dissipate before turning off the regulator. Once your regulator is in pilot mode, move it to “auto”.
5. Gas Valve Failure
Does no hot water come out of your gas water heater? Check the gas valve to the water heater and the gas supply tube.
Gas valves need to be inspected if there are no leaks. Ensure that it is securely positioned and that it is in the correct position. You should also double-check that the gas is turned on.
You should check the gas valve if the pilot light is not working. There may be a need to relight the pilot multiple times. You need to keep it burning. It’s possible that the gas supply is limited because a gas line is obstructing it.
When none of these methods works, you should consider replacing your water heater with a more energy-efficient model. It is best to consult a plumbing specialist to be sure.
6. Leaking Water Heater Tank
It is not designed for water heater tanks to leak. Providing water to a water heater is essential for it to function. If you do not have hot water and see water on the ground near the hot water tank base, you probably have a leaking tank.
It is not energy-efficient to leave an empty tank since it is a safety hazard. Make sure the pipes and the connections on the appliance are all in good shape, as well as the valves and the connections.
Make sure they’re secure by checking the tank compartment. When you see water in the compartment of your machine, the machine likely needs to be replaced.
7. Gas Leak
You can lose your hot water forever if your house has a gas line leak. To deal with leaking gas water heaters, one should inspect all connections for leaks before calling a plumber or repairing the heater oneself.
Turn off the main valve, let the faucets drip, and put your hands on all pipes to check for leaks or strange odors.
Gas supply problems can be extremely dangerous if any suspicious activity is detected. You may have a line leak in your home if you notice a rotten egg gas smell in your home. Follow these steps:
- Attempting to repair the line will only result in failure.
- You should contact the gas utility company right away.
- After relocating to a safe distance from your home, call the police and the electric company.
- Use a lighted match, or do not smoke.
- The light switch should not be turned on or off when household electrical appliances, such as refrigerators and stoves, are on.
- Close your house’s gas valves.
- You should not use your phone until you are safely away from the suspected leak source.
How Do You Reset Your Hot Water Heater?
Occasionally, you may need to relight your gas water heater.
You can reset an electric water heater by pressing its reset button or by unplugging and reconnecting it after a few minutes if one does not have a reset button.
Try resetting the circuit breaker for the hot water heater if that doesn’t help.
How Long Does It Take for a Water Heater to Recover?
Gas and electric water heaters react differently to water, so recovery times vary. The recovery time of a gas water heater is about half that of an electrical one. Electric water heaters take about two hours to recover from a power outage.
A 40-gallon electric water heater takes around twice as long to recover as its 40-gallon gas counterpart (about four hours). Hot water will be available as soon as the recovery process is complete if no hot water is used during the recovery.
Leaving your tank empty during recovery allows your heater to fill up and heat up the water uninterrupted. As recovery continues, you’ll add cold water to your tank.
Your water heater will take longer to fully recover and start supplying hot water again after this. Taking water too early means it’s either just warm or it’s only hot for a fraction of a second before it cools down again.
Due to concerns about safety and the technical nature of water heater repairs, it’s best to leave the job to professionals. Call an electrician if your unit does not have its own breaker or if it needs to be replaced.
You should also call professionals if your tank leaks on the ground or inside the heater’s compartments; otherwise, it will damage the heating elements or cause the thermostat to stop working.
To ensure the water heater’s heating element works correctly, he or she may inspect it.
You might also want the professional to check the high-temperature cutoff switch. Depending on how hot the water gets, the heater may shut down.