No Hot Water in Your Linden, NJ Home? What to Check for Gas and Electric Heaters

First find out whether you have a gas or an electric tank. On a gas unit, check that the pilot or igniter is working, the gas valve is open and the thermostat is set to heat. On an electric unit, check the breaker and the red reset button.

If a check works the first time, you are done. If the unit trips again, smells like gas, leaks or shows scorch marks, stop and call a licensed plumber.

Start by confirming what kind of heater you have

A gas tank has a gas pipe going into a control valve at the bottom and a flue or vent pipe leaving the top. An electric tank has thick wiring going into a panel on the side or top and no vent. If you cannot tell, look at the label on the tank.

Also check whether the whole house is without hot water or just one faucet. If only one faucet is cold, the problem is likely in that fixture or its mixing valve, not the tank.

Gas water heater: checks in order

Do these with the area dry and no gas smell. If you smell gas at any step, leave first.

1. Look for the pilot or igniter light. Many newer units show a status light. Older units have a small pilot flame you can view through a window. If it is out, follow the relighting steps printed on the tank label.
2. Check the gas valve. The handle on the pipe leading to the heater should line up with the pipe when open. A bumped handle is a common cause.
3. Check the thermostat dial. Someone may have turned it to vacation or pilot. Return it to a normal setting.
4. Check for power if it is a power vent. These models need an outlet and sometimes a switch. A tripped breaker or a loose plug stops the fan.
5. Look at the vent pipe. A disconnected or blocked flue means the heater will shut itself down for safety. Do not run it like that.

If the pilot lights but will not stay lit, the thermocouple or gas control may be failing. That is a repair for a plumber, not a repeated relight.

Electric water heater: checks in order

Electric units hold power inside the cover panels. Do not open them with the breaker on.

1. Check the breaker. Find the dedicated breaker, usually a double switch, and see if it is tripped. Flip it fully off and then on once.
2. Press the reset button once. On many units the button sits behind a panel, so turn the breaker off first, open the panel and press it once. If you are not comfortable doing that, call.
3. Check the thermostat setting. Make sure it is not set to its lowest position.
4. Consider the upper and lower elements. If the water is lukewarm or runs out fast, one element may have failed. That needs a meter test, which is a licensed trade task.

A reset button that trips again and again points to a fault, not a nuisance. Do not keep resetting it.

What the symptom tells you

Use this to match what you see to the likely cause.

The cold shower that is not the heater

Sometimes the tank is fine and the issue is at the point of use. A failing shower valve cartridge or a single lever mixing valve can pass only cold water. A crossover in a faucet can mix hot with cold in the pipe.

If only one shower or sink is cold, you likely need faucet repair or a valve cartridge, not a new tank. If several fixtures are cold, the tank or its supply is the more likely cause.

Stop and call when you see these

These are the lines we draw for safety.

• You smell gas. Leave the building, avoid switches and flames, and call your gas utility or 911 from a safe distance.
• Soot, scorch marks or a yellow flame. Incomplete combustion can produce carbon monoxide.
• A carbon monoxide alarm sounds. Get everyone outside and call 911.
• Water is leaking from the tank body. Close the cold supply valve above the tank and, for electric, turn off the breaker.
• The relief valve is dripping or discharging. That valve protects the tank. A flowing valve needs a plumber, not a cap.

When a repair makes sense and when it does not

A thermostat, thermocouple, element or igniter is a normal repair if the tank is dry and not old. Our water heater repair visits start with the tank condition so you do not pay to fix a failing tank.

A leaking tank, heavy rust at the base or a unit that has repeated failures usually calls for replacement. We will tell you honestly which side you are on.

Call the line when the checks do not solve it

Call us any hour, since the line is open 24/7. Tell the dispatcher whether it is gas or electric, what you checked, and whether you smelled anything. Same-day appointments are available when the schedule allows. We also work in Roselle and Elizabeth.

Sources behind this answer

Where this guidance comes from: general water heater safety practice, the state plumbing standard, and NJ DCA guidance on heater replacement as minor work. Gas safety instructions follow published utility guidance to leave the building and call 911 or your gas utility.