Tankless Water Heater Repair in Hemet, CA
Error code on your tankless display? FKM Plumbing repairs Navien, Rinnai, Noritz and Rheem tankless water heaters in Hemet, CA.
- Guaranteed Workmanship
- Descaling and Flush Service
- Upfront Pricing
- Long-Term Solutions
Get Instant Hot Water Back in Hemet, CA.
Don't let a cold shower ruin your day, contact FKM Plumbing for fast and reliable service.
Skilled Tankless Water Heater Repair in Hemet, CA for Gas and Electric Units
FKM Plumbing specializes in complete tankless water heater repair for homes and businesses throughout Hemet, CA. We understand the demands of on-demand hot water systems and are equipped to handle all common issues, from ignition failures to flow sensor problems.
Our expertise includes:
- Condensate neutralizer, venting and gas supply sizing corrections
- Cleaning and descaling heat exchanger passages.
- Flushing and descaling tankless units

Additional Plumbing Repair Services in Hemet, CA
We offer expert plumbing repair services across Hemet, CA to stop leaks, clear blockages, and keep every fixture working the way it should.

Customers
Why Choose FKM Plumbing for Tankless Water Heater Repair in Hemet, CA?
Choosing FKM Plumbing for your tankless water heater repair means choosing expertise and reliability. We are committed to providing top-quality service that restores your tankless system's efficiency and lifespan.
- Local Knowledge, We understand how local water conditions and usage patterns can impact tankless water heaters, which shapes our repair strategies.
- Scale Experts, We descale thoroughly and recommend softening or scale filters suited to your water.
- Brand Trained, Our plumbers understand the diagnostics for Navien, Rinnai, Noritz, Rheem and Takagi units.
Citywide Coverage
FKM Plumbing proudly serves every neighborhood in Hemet, providing prompt and reliable tankless water heater repair services. No matter where you are located within Hemet, our skilled technicians are just a call away, ready to restore your hot water.
Experienced Team
Our team of plumbers has extensive experience with tankless water heater repair, having worked on hundreds of units across Southern California.
Safety-First Approach
Safety is paramount in all our tankless water heater repair services, especially when dealing with gas lines and high-voltage electrical components. We adhere strictly to all local Hemet and Southern California plumbing codes and safety regulations to protect your home and family.
Trusted Certified Hemet Plumbing Services Professionals
At FKM Plumbing, we take pride in providing certified plumbing services throughout Hemet, CA. Backed by leading industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationReliable Tankless Water Heater Repair Services in Hemet, CA
Tankless Repair vs Replacement Cost in Hemet, CA
Descaling service typically costs $175 to $350, and sensor or igniter repairs run $250 to $600. Heat exchanger replacement can cost $800 to $1,500 or more unless covered by warranty. A new tankless unit installed typically ranges from $3,000 to $5,500. We compare these costs against the age and condition of your unit.

Commercial Tankless Water Heater Repair in Hemet
Commercial tankless water heaters in Hemet face heavier usage and require durable repair solutions. Whether it is for a restaurant, hotel or office building, we understand the urgency of maintaining hot water availability. Our commercial tankless water heater repair services address larger capacity units, complex manifold systems and often more severe scaling issues. We focus on fast, efficient service to minimize disruption to your business operations.
Tankless Descaling and Flushing in Hemet
Hard water leaves calcium and magnesium scale inside the heat exchanger, limiting flow and causing overheating. Many units warn of this with scale codes, such as the LC code on Rinnai models. We connect a circulation pump to the service valves and run a descaling solution through the exchanger. Annual descaling is a smart move for most homes on hard water.
No Hot Water Tankless Repair in Hemet
When your tankless unit fails to produce hot water, it is often due to issues with the ignition, gas supply or a clogged heat exchanger. Our technicians in Hemet will thoroughly diagnose the root cause, whether it is a faulty igniter, a pressure sensor fault or mineral buildup. We carry common replacement parts for fast fixes, restoring your continuous hot water supply efficiently. We also check for proper venting, which is essential for the safe operation of your unit.
Condensing Tankless Repair in Hemet, CA
Condensing tankless heaters, such as many Navien models, extract extra heat from exhaust and produce condensate. Clogged condensate traps, failed neutralizers and blocked drains can shut the unit down. We clean the trap, replace the neutralizer media and verify proper drainage. PVC venting is also inspected for slope and sagging.
Noritz Tankless Water Heater Repair in Hemet, CA
Noritz tankless heaters are known for their sturdy design, but can sometimes face issues such as flow sensor malfunctions or venting problems. We provide specialized repair services for Noritz units in Hemet, CA, ensuring proper combustion, water flow and exhaust, which are crucial for safe and efficient operation.
Recirculation Pump Repair in Hemet
Many tankless systems use internal or external recirculation to deliver hot water more quickly. Pump failures, check valve problems or wrong schedule settings can cause long waits or lukewarm water. We test the pump, check valves and controls and set the schedule to match your daily routine. A properly tuned system saves both water and gas.

Gas Tankless Water Heater Repair in Hemet
Gas tankless water heaters require correct gas pressure and proper ventilation for safe operation. Issues can range from gas valve failures to carbon monoxide sensor errors. Our licensed technicians in Hemet perform thorough diagnostics on gas lines, igniters and exhaust systems, so your unit is both functional and safe.
Tankless Water Heater Repair Near Me in Hemet, CA
We are familiar with the plumbing infrastructure and water conditions throughout Hemet, making us well suited to provide effective and long-lasting tankless water heater repair solutions right in your neighborhood.
We are proud to be the trusted local experts for tankless water heater repair throughout Hemet. Our quick response times and commitment to quality mean residents get their hot water systems back online quickly and efficiently, no matter where they are located in Southern California.
FKM Plumbing at a Glance
- Licensed and insured plumbers serving Hemet, CA
- Same-day appointments and 24/7 emergency response
- Clear written estimates, no hidden fees
- 4.8-star rated by 754+ Southern California customers
Hemet Map
Hemet Information
- Population
- 92,368
- Area codes
- 951/760/909
- Service area
- Hemet and communities within 40 miles
- Nearby
- Menifee, Perris, Murrieta, Moreno Valley
Around Hemet, flushing the water heater yearly and cleaning aerators keeps scale buildup from cutting flow and efficiency. Tankless heaters scale up when water is hard, so careful repair and regular descaling are what keep these high-efficiency units running for their full lifespan.
Expert Services
Trust our professionals for reliable FKM Plumbing solutions in Hemet, CA.
Our Specialized Plumbing Services in Hemet, CA
At FKM Plumbing, we provide a complete range of plumbing services across Hemet, CA. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Tankless Water Heater Repair Process Works in Hemet, CA
At FKM Plumbing, we follow a clear and simple process for all tankless water heater repairs in Hemet, CA.
Request a Quote
Contact us at (213) 871-0701 to describe your tankless water heater issue. We will schedule a good time for a technician to visit your Hemet home and provide an upfront quote.
Diagnosis
Our trained technician arrives on time, performs a thorough diagnostic check of your tankless unit and explains the problem in plain language.
Expert Repair
We carry out the necessary repairs using quality parts, making sure your tankless water heater is functioning correctly and safely before we leave.
Frequently Asked Questions About Tankless Water Heater Repair in Hemet
The cost of tankless water heater repair in Hemet varies widely depending on the issue, ranging from $150 for minor fixes like sensor replacement to $600 or more for complex repairs involving heat exchanger descaling or major component replacements. We provide a detailed estimate after identifying the specific problem.
Yes, FKM Plumbing stands behind its work. All our tankless water heater repairs come with a satisfaction guarantee and a warranty on both parts and labor. We will provide specific warranty details with your repair estimate.
In homes with hard water and no softener, once a year is a good rule. Homes with a softener may go longer, but annual inspection is still wise.
Codes point to specific faults such as ignition failure, flame loss, overheating or scale buildup. Each brand uses its own code list, and we use manufacturer guides to read them.
Yes, our technicians are trained and experienced in repairing all major tankless water heater brands, including Rinnai, Navien, Noritz, Rheem, Bosch, A.O. Smith and more. We carry a wide range of common parts for various models.
Error codes can be caused by a variety of issues, such as low water flow, gas supply problems, ignition failures, exhaust blockages or faulty temperature sensors. Each code corresponds to a specific system malfunction.
Common causes of failure include mineral buildup from hard water, ignition problems, faulty flow sensors, clogged air filters, exhaust venting issues and electrical component failures. Regular maintenance, including descaling, can prevent most of these problems.
Many common tankless water heater repairs can be completed within 1 to 3 hours, especially if parts are readily available. More complex issues, like extensive descaling or ordering special parts, might take longer and may require a follow-up visit.
What People Are Saying About Our Plumbing Experts?

Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Moreno Valley, CA
Mark T.
When our office needed drain cleaning, FKM Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Temecula, CA
Sofia M.
Two new toilets installed in one visit, no mess left behind, and the tech even adjusted a faucet he noticed was dripping. Fair pricing and really friendly.
Toilet Installation · Moreno Valley, CA
Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Hemet, CA
Emily R.
I called FKM Plumbing for plumbing repair, and the technician was fast, polite, and thorough. They explained the problem clearly and fixed it the same day. I will definitely hire them again. Highly recommended!
Plumbing Repair · Moreno Valley, CA
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Perris, CA













