TSBC Licensed LIC-00215622

Serving Metro Vancouver & the Fraser Valleyinfo@boosthvac.ca(778) 791-6460

Hot-water repair

Tankless Water Heater Repair

Tankless water-heater performance depends on water flow, gas supply, venting, combustion, controls, inlet temperature and maintenance condition. We use the symptom and fault history to guide a complete diagnosis.

✓ TSBC licensed✓ Lower Mainland service✓ Clear options
Tankless Repair service in the Lower Mainland
BOOST SERVICE STANDARDAssess. Explain. Verify.

Complete support

Help for the system you have—and the comfort you want.

Every home and installation is different. We identify the equipment, understand the concern and tailor the work to the actual conditions.

Discuss your system
01

Tankless error-code diagnostics

02

No-hot-water troubleshooting

03

Temperature fluctuation diagnosis

04

Low-flow and activation problems

05

Ignition and control testing

06

Descaling and maintenance assessment

Why the details matter

Performance starts before
the system turns on.

01

The displayed code put in context

An error code identifies a system condition, not always the single part that caused it.

02

Flow, gas and venting considered

Performance depends on the complete installation and household demand.

03

Maintenance needs explained

Scale, filters and service history are reviewed alongside repair needs.

When to call

Changes worth checking.

Small changes in sound, comfort, energy use or operation can be useful early warnings. If anything appears unsafe, turn the equipment off and call.

Call (778) 791-6460
01

The unit displays a recurring error code

02

Hot water turns cold during use

03

The heater does not activate at lower flow

04

Water temperature or pressure has become inconsistent

05

The unit has not been descaled according to its needs

Your service visit

A simple, visible process.

You know what is happening, what has been found and what comes next.

01

Review the fault history

We confirm the code, timing, affected fixtures, demand and recent maintenance.

02

Test operation

Flow, temperatures, controls and accessible gas, venting and water-side conditions are evaluated.

03

Repair and verify

Approved work is completed and hot-water operation is checked under available demand.

Tankless Repair FAQ

Questions homeowners ask.

These answers provide a useful starting point. Equipment and homes still need individual assessment.

Browse all HVAC questions
01What should I do when my tankless heater shows an error code?+

Record the exact code and model number. If you smell gas, see unsafe venting or the unit behaves dangerously, shut it down and seek urgent qualified help.

02Why does tankless hot water go cold during a shower?+

Flow changes, fixture mixing, capacity, maintenance, controls, gas supply and equipment faults can all contribute. The system needs to be evaluated under demand.

03Can descaling fix a tankless water heater problem?+

Descaling can address scale-related heat-transfer or flow concerns, but it will not correct every error code or failed component.

04Do you repair Navien and Rinnai tankless units?+

We work with common tankless brands including Navien and Rinnai. Provide the model and error code when booking so service options can be confirmed.

READY TO TALK?

Start with a clear assessment.

Tell us about the system and what you are experiencing.

Request a free estimate Call (778) 791-6460
Call nowFree estimate