Water Heater Repair in Honolulu, HI
Tell us what your water heater is doing, and a licensed contractor who covers Honolulu County will get in touch.
Tell us about the job
It takes about a minute.
Your water heater carries the full load all year
With no heating season in Honolulu, your water heater is the one appliance that runs hard every month, all year. There's no furnace sharing the work or slow season to give the tank a break. That steady demand adds up in hours on the burner or the heating element.
Power is the other thing to watch. Hawaii saw 14% of households go at least 24 hours without power in 2024, and the county has logged 58 damaging wind events over the past ten years. A standing pilot gas water heater will keep running through an outage. One with electronic ignition won't, and an electric water heater needs the power back before it heats again.
- 66°F
- the average winter night, and colder incoming water means longer heating
- 14%
- of Hawaii households lost power for a day or more in 2024, and a heater with an electric element or electric ignition stops without it
NOAA 1991–2020 monthly normals
A new water heater would cut about $670 a year off hot water for a typical Hawaii home.
Estimates for a typical Hawaii home, compared with an older unit built to the federal minimum, from EIA household energy data and Hawaii fuel prices. Your home will differ.
Repair makes sense when an element, thermostat or gas valve has failed.
Replacement makes sense when the tank itself is leaking.
- Why is my water heater leaking from the bottom?
- The most common reason is that the tank itself has rusted through and is starting to fail. Water heaters have a steel tank with a glass lining inside, and once that lining cracks, the metal underneath corrodes and eventually leaks. A leak can also come from a loose drain valve at the bottom or a fitting that has worked itself loose, and those can sometimes be tightened or replaced. Once the tank itself is leaking, the water heater needs to be replaced, since there is no way to repair a hole in the tank.
- Why won't the pilot light on my water heater stay lit?
- Most of the time this means the thermocouple has worn out. That's the small sensor that sits in the pilot flame and tells the gas valve it is safe to keep the gas flowing. When it fails, the valve shuts the gas off as soon as you let go of the pilot button, even though the flame was lit a second ago. A dirty pilot orifice or a draft blowing on the flame can cause the same problem, so a contractor will check those before replacing the thermocouple.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater can be repaired without replacing the whole unit. Common repairs include cleaning mineral buildup off the heat exchanger, replacing an igniter or flow sensor, or clearing a blocked vent. A contractor can check the unit's error code, since tankless models usually display one when something is wrong, and that points straight to the part that needs attention.