What is descaling, and why is it necessary?

Descaling is a professional flush of the heat exchanger using food-safe dilute acid that dissolves mineral deposits without damaging the unit. Scale reduces efficiency and heating power. Annual descaling in hard-water areas extends system life by 3–5 years.

Can I descale my tankless water heater myself?

You can attempt a simple flush with a commercial kit, but professional descaling is more thorough and safer. We use calibrated equipment and monitor the process to verify restored performance without risking damage to seals or internal components.

What should I do if my system develops an error code between visits?

Don't ignore error codes. Call us immediately with the code and your unit's brand and model. We can tell you whether the issue is urgent or if it can wait. Maintenance plan members receive priority scheduling for any follow-up service.

Will maintenance prevent all repairs?

Maintenance prevents most age-related failures and catches problems early, but unexpected manufacturing defects can still occur. Maintenance members receive discounted repair rates and priority access when issues do arise, minimizing downtime and cost.

What happens if I skip maintenance for several years?

Skipping maintenance increases mineral buildup, efficiency loss, and unexpected failure risk. A system neglected for 3–4 years may require aggressive descaling or heat exchanger replacement. Maintenance is far cheaper than the consequences of neglect.

Professional Tankless Water Heater Care

Tankless Water Heater Maintenance & Descaling Across Central Florida

Name: Plumbing Solutions of Central Florida, Inc.
Address: 3501 W Vine St Ste 277, Kissimmee, FL, 34741, US
Telephone: (407) 847-0884

Keep your on-demand system running efficiently—year after year

A tankless water heater is an investment in your home's comfort and efficiency. To protect that investment and avoid unexpected failures, regular maintenance is essential. Hard water—common throughout Central Florida—deposits minerals inside your tankless system's heat exchanger, reducing efficiency and potentially triggering costly repairs. Plumbing Solutions of Central Florida, Inc. provides scheduled maintenance and professional descaling services that extend your system's life, preserve energy efficiency, and catch small problems before they become emergencies. Whether you own a Navien, Rinnai, or Rheem system, we create a maintenance plan tailored to your water hardness and usage patterns. Most customers who stay on a maintenance plan avoid emergency calls and enjoy reliable hot water for 15+ years.

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Protect Your Investment

Why Preventive Maintenance Matters for Your Tankless System

Descaling Protects Your Heat Exchanger

Mineral scale on the heat exchanger's copper tubing reduces heat transfer efficiency, forcing the system to work harder and consume more gas to reach your target temperature. In hard-water areas like Central Florida, scale accumulates faster than you might expect. Professional descaling using food-safe dilute acid dissolves mineral deposits without damaging internal components. Annual descaling can add 3–5 years to your system's lifespan and recover 10–15% of lost efficiency. Most homeowners see their energy bills drop noticeably after a thorough flush.

Regular Inspections Catch Small Issues

A loose gas connection, a worn electrode, or a failing pressure relief valve rarely announces itself until your system suddenly loses hot water on a cold morning. During scheduled maintenance, we test gas pressure, inspect electrical connections, verify water flow, and listen for unusual sounds—the same diagnostic rigor we bring to emergency repairs. Finding a small repair problem during routine service beats a major heat exchanger replacement that could have been prevented with preventive care.

Complete Service History Documentation

Every time we visit, we photograph the system's condition, document test results, and note any findings in a file we keep. If issues do arise, that history helps us understand the system's trajectory and make informed repair recommendations. Homeowners who sell their homes appreciate this record too—it demonstrates responsible ownership and increases buyer confidence.

Prevents Seasonal Hot Water Shortages

Winter demand surges when homeowners crank up showers and heating loads, yet systems haven't been serviced since summer. We schedule spring and fall visits to clean filters, verify flow, and descale as needed—so you're never caught without hot water during peak-demand seasons. Maintenance plan members get priority scheduling during winter and summer, guaranteeing availability when demand peaks.

Water Quality Monitoring

Hard water requires annual descaling; soft water might stretch to every 2–3 years. During your first maintenance visit, we test your water's mineral content and recommend a frequency tailored to your specific water chemistry. If you live in a hard-water zone (most of Central Florida qualifies), we explain the trade-off between regular descaling and installing a whole-home water softener. Many customers find that combining a water softener with annual maintenance provides the lowest total cost of ownership.

Predictable Costs & Priority Access

Instead of paying for service calls as failures happen, a maintenance plan spreads costs predictably across the year and guarantees you won't wait for emergency service during peak seasons. Plan members receive member discounts on any repairs needed, guaranteed response times, and seasonal reminders so you never forget your system's needs.

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A few hours of preventive care each year keeps your tankless system healthy and saves thousands in emergency repairs. Our maintenance plans are customized to your water chemistry and usage patterns.

Tankless Repair Tankless Installation Water Filtration

Our Maintenance Process

Our Scheduled Maintenance Program: What Happens at Each Visit

Our maintenance process follows a comprehensive checklist tailored to your system's brand and age. Here's exactly what we inspect, test, and service during a routine visit.

System Inspection and Performance Review

We arrive and begin with a visual walk-around of your entire system—the tankless unit itself, the gas line, water connections, venting, and any visible corrosion or leaks.

Photograph the current condition and compare to our prior visit photos (if this isn't your first service)
Read the digital display to check current settings and note any error codes or warnings that may not have triggered a full shutdown yet
Inspect the exterior of the unit for corrosion, especially around venting or condensate drain outlets
Test the water pressure at your home's main shutoff and at the tankless inlet to ensure adequate flow (minimum 10 PSI typically required)
Check the gas pressure with a manometer and compare to the unit's manual specification (usually 5–7" water column)
Listen to the burner during a test fire—a steady roar means normal combustion; sputtering or hissing suggests a problem

If this is a service following a repair, we also verify that the previous repair is holding and no new issues have emerged.

What We Check On Arrival

Digital display readings and error codes
Exterior unit condition and corrosion
Water pressure at main and inlet
Gas pressure with manometer testing
Burner combustion sound and pattern
Venting and condensate drain condition

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Water Testing and Mineral Assessment

We collect a sample of your home's hot water and test it for mineral content (hardness). This tells us how aggressively scale is forming inside your heat exchanger.

Test for calcium and magnesium hardness in parts per million (PPM)
Determine whether annual descaling or every-2-years descaling is appropriate for your water
Note whether a whole-home water softener would pay for itself through extended system life and reduced energy costs
Document findings and adjust the next maintenance visit schedule accordingly

Hard water (150+ PPM) triggers annual descaling; soft water (under 100 PPM) may stretch visits to every 2 years.

Water Quality Testing

Calcium and magnesium hardness (PPM)
pH level and acidity testing
Total dissolved solids measurement
Maintenance frequency recommendation
Water softener cost-benefit analysis
Documentation for future reference

Water Filtration Services

Heat Exchanger Flush and Descaling

If your water is hard or if this is a scheduled annual visit in a hard-water area, we perform a professional descaling flush.

Connect the descaling kit (a small pump and container with food-safe dilute citric or acetic acid) to the unit's hot water outlet and cold inlet
Run the solution through the heat exchanger for 30–45 minutes at low flow, dissolving mineral deposits without damaging copper tubing
Flush the system thoroughly with fresh water to remove all acid residue
Measure flow rate before and after descaling to confirm the system's efficiency has been restored
Document the amount of scale removed (visual inspection of the flushed solution) so you can see the problem that was prevented

Many customers report noticeably faster hot water delivery and lower energy bills within days of descaling.

Professional Descaling Process

Food-safe citric or acetic acid solution
30–45 minute circulation at controlled flow
Thorough fresh water flush
Before/after flow rate measurement
Visual documentation of scale removal
Efficiency restoration verification

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Sensor, Valve, and Electrical Component Testing

We move on to the system's internal "brain"—the sensors and solenoid valves that control heating, gas flow, and temperature regulation.

Test the ignition spark with a spark tester (confirms the ignition module is healthy)
Measure electrode resistance with a multimeter (checks the flame-sensing rod is clean and responsive)
Verify the temperature sensor reads correctly by comparing the system's display temperature to an independent digital thermometer
Test the mixing valve's servo solenoid to ensure it responds to temperature adjustments
Check the water inlet flow sensor for debris or blockage (sometimes mineral scale accumulates at the sensor housing)
Inspect the pressure relief valve to confirm it's not leaking continuously

All of these components are wear items that gradually degrade over years. Testing them early catches failures before they cause a no-hot-water situation.

Component Testing Checklist

Ignition spark and module testing
Electrode resistance measurement
Temperature sensor accuracy verification
Mixing valve servo solenoid response
Water inlet flow sensor inspection
Pressure relief valve leak check

Tankless Repair Services

Gas Line, Venting, and Safety System Check

Safety is non-negotiable. We inspect the combustion air path and venting to prevent carbon monoxide risk and ensure proper heat rejection.

Inspect the gas supply line and all connections for corrosion, loose fittings, or kinks
Test gas connections with a soapy water solution to confirm zero leaks
Check the vent termination outside for blockages (debris, animal nests, or ice in winter) that could back up exhaust
Inspect venting joints and confirm they're sealed and sloped correctly (condensing units must slope downward)
Verify the condensate drain line (on condensing units) is clear and draining properly
Confirm the flue vent isn't loose or separated from the unit

A blocked vent is a serious safety concern; we address any issues on the spot.

Safety Inspection Points

Gas supply line and connection inspection
Leak testing with soapy water solution
Vent termination blockage check
Venting joint seal and slope verification
Condensate drain line clearance
Flue vent security and connection

Emergency Service

Documentation, Recommendations, and Next Steps

We conclude the visit with a complete written report and recommendations.

Provide a detailed invoice showing all tests performed, parts replaced (if any), and findings
Email or hand you a copy with photographs from this visit and comparison to your prior visit (if applicable)
Recommend the next scheduled maintenance date based on water hardness and system age
If repairs are identified but not urgent, we discuss the options and costs upfront so you can decide whether to proceed immediately or plan for a later date
Enroll you in our maintenance plan (if not already a member) so future visits are bundled and discounted
Provide our 24/7 emergency number in case issues arise before your next scheduled visit

Most customers schedule their maintenance visits 12 months apart in hard-water areas, or 24 months in soft-water areas. If your system is over 10 years old, we may recommend annual service regardless of water hardness.

What You Receive After Every Visit

Detailed invoice with all tests performed
Before/after photographs
Next maintenance date recommendation
Repair options and cost estimates
Maintenance plan enrollment options
24/7 emergency contact information

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Why Choose Plumbing Solutions?

Experienced Plumbers

Our team of licensed and experienced plumbers is well-equipped to handle any plumbing challenge.

Efficient Water Heating

Upgrade to energy-efficient water heating solutions that save you money and provide consistent hot water.

Gas Fire Pit Specialists

We bring warmth and ambiance to your outdoor space with custom gas fire pit installations.

Prompt Service

Plumbing Solutions understands the urgency of plumbing issues and responds quickly to your service calls.

Transparent Pricing

Financing available for qualified applicants We provide upfront pricing and believe in fair, honest, and transparent dealings with our customers.

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Tankless Maintenance Questions Answered

Frequently Asked Questions About Tankless Water Heater Maintenance

In Central Florida's hard-water areas, annual maintenance is ideal to prevent mineral scale from building up in the heat exchanger. If your water is soft, every 2 years may be sufficient. We'll assess your water hardness during your first visit and recommend a schedule that protects your investment cost-effectively.

Descaling is a professional flush of the heat exchanger using a food-safe dilute acid that dissolves mineral deposits (calcium and magnesium) without damaging the copper tubing. As scale accumulates, it reduces the system's efficiency and heating power. Annual descaling in hard-water areas prevents this degradation and extends system life by 3–5 years.

You can perform a simple flush using a commercial descaling kit and submersible pump, but professional descaling is more thorough and safer. We use calibrated equipment to circulate the solution at the right pressure and temperature, monitor the process, and verify the system's restored performance. DIY descaling risks damaging seals or introducing air into the system.

Maintenance plans vary based on frequency (annual vs. every 2 years) and what's included. We offer flexible options starting with basic inspection and testing up to comprehensive plans that include annual descaling. Contact us for a customized quote based on your system and water conditions.

Our standard maintenance plan includes a comprehensive system inspection, water hardness testing, performance testing of all sensors and valves, a safety check, and a detailed report. Annual descaling, priority scheduling, and discounts on emergency repairs are available as add-ons or in premium plan tiers.

Don't ignore it. Error codes indicate a specific problem that may worsen if not addressed. Call us immediately with the error code and your unit's brand and model. We can often tell you whether the issue is urgent (requiring same-day service) or if it can wait until your next scheduled maintenance. As a maintenance plan member, you receive priority scheduling.

Maintenance prevents most age-related failures and catches small problems early, but it can't prevent every possible failure. Unexpected issues—like a manufacturing defect in a solenoid valve—can still occur. However, maintenance members receive discounted repair rates and priority access to our technicians when problems do arise.

A typical maintenance visit takes 1.5–2 hours, depending on whether descaling is needed and what tests reveal. Descaling adds 30–45 minutes to the visit. We'll estimate the time when we schedule your appointment and confirm you're comfortable with the window.

It depends on your water hardness. If your water is very hard (over 250 PPM), a whole-home water softener pays for itself through reduced maintenance and extended system life. We can test your water and provide a cost-benefit analysis. Many customers find that a softener plus annual maintenance provides the lowest 15-year cost of ownership compared to descaling alone.

Skipping maintenance increases the risk of mineral buildup, efficiency loss, and unexpected failures. A system that hasn't been serviced in 3–4 years may have significant scale inside the heat exchanger, requiring aggressive descaling or even heat exchanger replacement. Maintenance is far cheaper than the consequences of neglect.

Where We Provide Maintenance

Professional Tankless Maintenance Throughout Central Florida

Plumbing Solutions of Central Florida, Inc. provides scheduled maintenance and descaling services across the entire region. We understand local water hardness variations and adjust maintenance frequency accordingly.

Longwood, FL

North of Orlando in a moderately hard-water zone; annual maintenance is standard here. We schedule spring and fall visits to keep systems running smoothly year-round.

Celebration, FL

Near Disney with planned-community infrastructure; homes here have consistently good water pressure but hard water requiring annual descaling.

Winter Park, FL

Historic homes with varying water conditions; we test each system individually and tailor maintenance schedules to local characteristics.

Orlando, FL

Our home base; we schedule maintenance appointments quickly and maintain detailed service records for repeat customers throughout the metro area.

Groveland, FL

West-county location with hard-water characteristics similar to Longwood; annual maintenance is the standard recommendation.

Poinciana, FL

This fast-growing area has some of the hardest water in Central Florida; we often recommend annual descaling or water softener installation.

Lakeland, FL

South of Orlando with consistently hard water; annual maintenance and descaling are essential to prevent premature system decline.

Kissimmee, FL

Our home base — serving Kissimmee and surrounding FL communities with comprehensive tankless maintenance services.

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Preventive Maintenance Plan – Keep Your System Running Smoothly!

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