
Water Heater Repair
Water pooling under a tank next to a furnace or a panel means shutting off the water and the power or gas to that heater without waiting.
When this becomes an emergency
- Standing water on the floor under the tank.
- Rust bleeding from a seam or a fitting on the tank.
- Noticeably less hot water than the household used to get.
- The relief valve discharging into the pan on a regular basis.
What a pro does
The first call a plumber makes on a water heater is repair or replace, and the location of the water usually answers it. Leaking from the tank body means the steel is through and no part changes that. Leaking at a fitting, a drain valve or the relief valve is often fixable. After that the diagnosis follows the fuel and the water. Gas units get the thermocouple, the control valve and the venting checked, and draft matters in tight newer houses out toward Harrisburg where a heater's competing with everything else pulling air. Electric units get elements and thermostats tested under load. Then the plumber drains part of the tank, because in water this hard the sediment sample tells more than any single reading. A heavy scale layer explains slow recovery, popping, and a burner that doesn't seem to shut off. Expansion gets a look too. A system with a check valve and no expansion tank has nowhere to send the extra volume from heating, so the relief valve becomes the pressure outlet and drips every cycle.
Frequently asked questions
Keep going
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