If your gas water heater is acting up, you don’t have to wait weeks for a technician. Most issues are caused by a few easy‑to‑check things that you can handle yourself. Below we walk through the top problems, quick fixes, and the signs that it’s time to call an expert.
1. Pilot light out. On older models the pilot keeps the burner lit. If it’s gone out, the heater won’t fire. To relight it, turn the gas control knob to “off," wait a minute, then follow the manufacturer’s instructions to ignite the pilot. If it keeps blowing out, there may be a dirty pilot tube or a faulty thermocouple.
2. Thermostat set too low. It’s easy to forget you adjusted the temperature. Check the dial – 120°F (49°C) is a good balance of comfort and energy use. Raising it a few degrees often restores hot water instantly.
3. Sediment buildup. Over time minerals settle at the bottom of the tank, insulating the heating element and causing the burner to overheat. If you hear strange noises or notice lukewarm water, a tank flush can solve the problem. Turn off the gas, connect a garden hose to the drain valve, and let the water run until clear.
4. Faulty gas valve or igniter. Modern units use electronic ignition. If you hear clicking but no flame, the igniter could be bad. Replacing an igniter is a DIY job for anyone comfortable with basic electrical work, but if you’re unsure, call a qualified engineer.
Even if you’re handy, some situations need a Gas Safe registered technician. If you smell gas, the pilot won’t stay lit after several attempts, the burner is sputtering, or the unit is leaking water, shut off the gas supply and call us right away. Trying to fix a gas leak yourself can be dangerous.
Our Bognor Regis team can diagnose the issue, replace faulty parts, and ensure your heater meets safety standards. We’re quick, reliable, and aim to have hot water back in your home the same day.
Remember, regular maintenance prevents most breakdowns. Flushing the tank once a year, checking the pressure relief valve, and testing the pilot light keep your system running smoothly. Keep the manufacturer’s manual handy – it’s a goldmine of troubleshooting tips specific to your model.
Got a gas water heater acting up? Try the simple checks above first. If the problem persists, give our experts a call. We’ll get your showers back to the perfect temperature without the hassle.
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