Water Heater Maintenance | Tankless Pros Water Heaters | Phoenix, Az

Does My Water Heater Need Maintenance?

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Yes. Every water heater—gas tankless, gas tank-type, or electric tank-type—needs regular professional maintenance. In the Phoenix metro area, hard water accelerates mineral scale and sediment buildup, which quietly reduces efficiency, shortens equipment life, and can create safety issues. Most units should be serviced once a year. Higher-quality equipment in lower-usage homes with milder water conditions may stretch to every two years, but annual service remains the safer, more cost-effective choice.

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How We Service Your Water Heater

We perform a complete, type-specific inspection and service so the unit runs safely, efficiently, and lasts as long as possible.

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All water heaters receive:

• Full visual inspection of accessible components

• Age verification via manufacturer date code / serial number

• Testing of temperature controls for proper start and stop operation

• Leak check (water and, where applicable, gas)

• Temperature & pressure (T&P) relief valve inspection and test

• Thermostat calibration and gauge verification

• Review of current manufacturer service bulletins or updates

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Gas tank-type (storage) water heaters additionally receive:​

• Full-pressure tank flush to remove sediment and mineral deposits from the bottom of the tank

• Inspection and cleaning of the gas drip-leg / sediment trap

• Burner assembly and pilot or electronic ignition cleaning and inspection

• Flue vent check for proper alignment, secure fittings, and unrestricted flow

• Carbon monoxide leak test

• Anode rod inspection (the sacrificial rod that protects the tank from corrosion)

• Thermal expansion evaluation, especially important on closed plumbing systems

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Electric tank-type water heaters additionally receive:​

• Full-pressure tank flush to remove sediment

• Heating element inspection for scale buildup, continuity, and resistance

• Upper and lower thermostat testing and calibration

• Electrical connection, wiring, and amperage draw safety check

• Anode rod inspection

 

Gas tankless water heaters receive specialized service:​

• Heat-exchanger descaling and flush (critical in hard-water areas—scale restricts flow and can destroy the exchanger if ignored)

• Inlet water filter / screen cleaning or replacement

• Burner, combustion fan, and exhaust component inspection and cleaning

• Gas pressure and manifold pressure verification

• Water-flow sensor, temperature sensor, and error-code history review

• Venting system inspection for proper termination, slope, clearances, and unrestricted flow

• Condensate drain check on condensing models

• Combustion performance evaluation when indicated

 

Bet You Didn’t Know

When water inside a tank reaches roughly 120°F and higher, dissolved minerals (especially calcium and magnesium that are abundant in Arizona water) rapidly precipitate out of solution.

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• In tank-type heaters, these minerals settle as a layer of sediment on the bottom. That layer acts like insulation: the burner or heating elements must work harder and longer, efficiency drops, the tank runs louder, and the unit’s life is shortened.

• In gas tankless heaters, the same minerals form hard scale inside the narrow passages of the heat exchanger. Scale restricts water flow, reduces hot-water output, triggers error codes, and eventually cracks or clogs the exchanger—an expensive failure that proper annual descaling almost always prevents.

• On electric tank heaters, scale coats the heating elements themselves, reducing heat transfer and causing the elements to overheat and fail prematurely.

 

Regular professional maintenance removes this buildup, restores efficiency, and routinely adds years of reliable service to the equipment.

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Call us to schedule your water heater service: 602-833-1533