Water Heater Repair in Annapolis, MD
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What Anne Arundel winters do to a water heater
Your water heater works harder from October through April, when incoming water runs cold and the tank has to make up more ground to hit temperature. On the nights that drop toward 29°F, it cycles more just to keep up, and that extra work falls on the heating element or burner and on the thermostat that controls it.
Power matters too. Anne Arundel County has seen 10 winter storms and 248 damaging wind events over the past ten years, and across Maryland about 11% of households lost power for a full day or more in 2024. A gas water heater with a standing pilot will keep running through an outage. One with an electric igniter or an electric tank will not, and when the power comes back, most units restart on their own. If yours does not, or the water stays cold after the lights come back on, that points to a problem worth having looked at.
- 29°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 11%
- of Maryland households lost power for a day or more in 2024, and a heater with an electric element or electric ignition stops without it
NOAA nClimDiv, 1991–2020 normals
A new water heater would cut about $370 a year off hot water for a typical Maryland home.
Estimates for a typical Maryland home, compared with an older unit built to the federal minimum, from EIA household energy data and Maryland 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?
- Most often the tank itself has rusted through and is holding water where it shouldn't. Once the steel lining fails, no fitting or valve fix will stop it, and the tank needs to be replaced. Before assuming the worst, though, a contractor will check the drain valve and the fittings above the tank, since a loose connection there can look like a tank leak but is a simple fix. Water pooling only when the heater runs, versus water that's there all the time, points to different causes, so that detail is worth mentioning when a contractor looks at it.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple, the small sensor that tells the gas valve the pilot is burning. When it wears out, it shuts the gas off even though the flame is lit, because it can no longer sense the heat correctly. A dirty pilot orifice or a draft pulling the flame sideways can cause the same problem. A contractor can test the thermocouple's output directly and replace it if it's reading low.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless unit are repairable rather than a reason to replace it. Buildup of minerals on the heat exchanger is the most common issue, and it's cleared by flushing the unit with a descaling solution. Ignition failures, sensor faults, and error codes on the display usually trace back to a specific part that a contractor can test and swap out. Whether a repair makes sense for a given unit depends on its age and condition, which a contractor can assess in person.