Match your symptom to the likely cause
Most water heater complaints fall into a handful of patterns. Knowing which one you have helps us bring the right parts the first time.
| What you notice | Likely cause | Usually repairable? |
|---|---|---|
| No hot water at all, gas unit | Pilot out, failed thermocouple or gas valve | Yes, in most cases |
| No hot water at all, electric unit | Tripped breaker, failed upper element or high limit switch | Yes |
| Hot water runs out fast | Sediment buildup or a failed lower element or dip tube | Often, if the tank is sound |
| Water too hot or scalding | Stuck thermostat or a bad temperature control | Yes |
| Rumbling or popping | Sediment on the tank floor | Flushing helps, severe scale may mean replacement |
| Water pooling under the tank | Fitting, drain valve or relief valve, or the tank itself | Only if the tank is dry |
Quick checks that are safe to try
A few things take two minutes and sometimes solve the problem. Stop if anything feels unsafe, and never remove panels on a unit that is live.
- Check the breaker for an electric heater, and reset it once. If it trips again, leave it off and call.
- Look at the thermostat setting. A dial knocked to the lowest mark gives lukewarm water.
- On a gas unit, look for a pilot flame through the viewing window. If it is out, follow the lighting instructions on the tank label, once.
- Open a hot tap and check whether the flow is steady. Weak flow points at a clogged fixture or valve, not the heater.
If the pilot will not stay lit, or you smell gas at any point, stop. That is a job for a plumber, and the smell is a reason to leave the house first.
Emergency steps if the tank is leaking or smells of gas
These steps keep a repairable problem from becoming a damaging one.
Shut off the cold supply
Close the valve on the cold pipe above the tank. Turn it clockwise until it stops. If you cannot reach it, close the main water shutoff.
Turn off power or gas
Switch off the breaker for an electric unit. Set the gas valve on a gas unit to off. Do not relight anything.
Gas smell means leave
If you smell gas, do not touch switches or phones inside. Go outside, then call the gas utility and ours.
Contain the water
Place a bucket or tray under a slow drip. For a steady flow, drain the tank to a floor drain with a hose from the drain valve once the power is off.
Not sure if it is fixable?
Call and tell us what you see. We will say what is likely, and what to leave switched off until we arrive.
What Ridgewood water does to a heater
According to Ridgewood Water's published quality report, hardness ranges from roughly 136 to 470 parts per million across its supply. That is moderately to very hard water, and it leaves scale on elements, thermostats and the tank floor.
Scale is behind a large share of the electric element failures and slow recovery we see. A heater in a hard-water home needs flushing, and its anode rod should be checked before the tank starts to rust through.
The same water also shortens the life of the relief valve and drain valve, which stick open or weep once mineral crust forms on the seat. Replacing a weeping relief valve is cheap. Ignoring one can soak a basement floor.
How a repair visit goes
- 1
Diagnose
We test the electrical or gas side first, then check temperature, pressure and the tank for moisture.
- 2
Explain
You hear what failed, what it costs to fix and whether a new tank is the better use of the money.
- 3
Repair
We replace the part, clean or flush the tank when it helps and reconnect any piping.
- 4
Test
We fire or power the unit, verify temperature at a tap and check the relief valve and flue before leaving.
When repair stops making sense
A leak through the tank wall cannot be fixed. A rusted-out base, a cracked tank liner or a heavy scale crust that has choked the unit are also signs the end is near. When that is the case we move straight to water heater replacement and size the new unit with you.
Tankless heaters have their own faults, usually error codes and mineral buildup in the heat exchanger. Those are covered under tankless water heater service.
What shapes a repair bill
Repair costs vary widely because the failed part decides everything.
We give the price once we know the cause.
We repair heaters in Ridgewood and nearby places such as Glen Rock. If the leak is not the heater at all, a leak detection visit finds where the water is really coming from.
Hot water down?
Call Ridgewood Pro Plumbing. We diagnose the cause on site and tell you whether a repair is worth it.
Questions homeowners ask
On gas units it is usually a weak thermocouple, a draft problem or a dirty pilot assembly. On electric units a failed element or high limit switch is more common. We test to find out which.
A leak from the tank body is, because water can flood a basement fast. Shut off the cold supply and power or gas, then call. A small drip at a fitting is less urgent but should not wait long.
Yes. Ridgewood's supply is on the hard side, and scale insulates the water from the element or burner. That makes the unit work harder and wears out parts sooner.
You can try once using the instructions on the tank label. If it will not stay lit, or you smell gas, stop and call.
We look at the failed part, the condition of the tank and the number of repairs it has needed. If a repair gives you reliable hot water, we do it. If the tank is leaking, we recommend replacement.
We handle tankless units for error codes and descaling. Tell us the brand and what the display shows, and we will say what is involved.