Rinnai Tankless Water Heater Replacement & Repair in Las Vegas, NV

Most valley calls about a Rinnai tankless water heater start with no hot water, a Code 11 ignition fault, or a unit that needs a flush after months of hard-water scale.

Water Heaters Today LLC repairs SENSEI™ condensing and RE non-condensing models when the exchanger is still worth saving, and replaces the same lines when a new unit is the smarter spend.

We size gas and peak GPM to your fixtures, then set clearances, venting, and flush ports so the next service visit is straightforward.

These units reward correct meter capacity and a real descale calendar.

Undersized gas and skipped flushes are what turn a solid SENSEI into an error-code weekend.

We confirm BTU and outdoor vs indoor placement from freeze risk and vent runs - not whatever leftover copper is already on the wall.

Searching for Rinnai service near you, a dealer, or a certified technician usually means you need someone who already knows the error codes and carries common parts.

We diagnose and repair these tankless units across the Las Vegas Valley - licensed #0092824, same-day openings when trucks allow, and techs who stock sensors, igniters, and flush kits so the first visit finishes.

Typical service calls:

• Ignition / flame faults (homeowners often see Code 11 and related combustion errors)
• Flow complaints when Circ-Logic recirculation timing or check valves are wrong
• Condensate issues on condensing SENSEI installs
• Overheat or scale codes after months without a flush
• Wi-Fi / control alerts that point to maintenance or sensor faults

We read the code, confirm gas and venting, then flush or replace parts to brand specs. Brand-agnostic tankless planning is on our tankless water heaters page. Broader storage work sits on water heater repair; fuel-type pages cover gas and electric units.

Circ-Logic can cut wait time at far fixtures when the return path and schedule match the house. It fails loudly when someone enables recirculation on a dead-end line or leaves pumps thrashing without isolation. We map the loop before promising "instant hot."

Comparing tankless brands on the same quote? Start with Rheem for storage, or Rheem tankless when you want on-demand side-by-side.

Descales and common sensor/igniter repairs often sit about $250-$600+ when the exchanger is still worth saving.

A full tankless install typically lands in our $1,800-$4,000+ installed band once the unit, labor, haul-away, venting, condensate (when condensing), and common code items are included.

Gas upsizing, outdoor kits, and Circ-Logic hardware push higher.

Full replacement logistics across brands are on installation & replacement. We quote the job before the wall opens.

A clean cutover:

1. Verify peak GPM, gas meter capacity, and condensing vs non-condensing vent path.
2. Mount to manufacturer clearances with isolation valves and flush ports for annual service.
3. Commission ignition, set temperature, prove simultaneous fixtures, and test Circ-Logic if used.
4. Register warranty with model/serial and pull permits when required.
5. Put descaling on the calendar - annual is the valley baseline; recirculation and heavy use may need more.

Valley minerals clog exchangers. Skipping flushes is how Code 11-style failures and early exchanger damage show up. Emergency openings get priority when trucks are free; planned maintenance keeps Saturday brunch hot.

Water Heaters Today LLC (#0092824) replaces and repairs Rinnai from 336 Auster Park Ave, Las Vegas, NV 89148.

Licensed Nevada plumbing, 30-day labor guarantee on work we perform, and techs who carry common sensors and flush kits so first visits finish.

We cover Henderson, North Las Vegas, Summerlin, Spring Valley, Paradise, Enterprise, Sunrise Manor, Whitney, Boulder City, and the wider valley.

Need a Code 11 diagnostic or a SENSEI install quote? Contact us or call (702) 305-8750 for a site check and clear price.