Old Tankless Water Heater Repair in Metro Vancouver If you need
old tankless water heater repair in Metro Vancouver, CANRO Heating & Cooling is your trusted HVAC expert. With over
25 years of experience, we specialize in
repairing and maintaining tankless water heaters, ensuring your home or business continues to have a
reliable, energy-efficient hot water supply. Whether your
tankless water heater is not heating properly, producing inconsistent temperatures, or displaying error codes, our
certified technicians provide
fast and affordable repairs throughout
Vancouver, Burnaby, Richmond, Surrey, Coquitlam, and surrounding areas.
Why Repair Your Old Tankless Water Heater Instead of Replacing It?
While replacing a
tankless water heater may be necessary in some cases, repairs can
extend its lifespan and save you money. Here’s why repairing your old unit may be the right choice:
- Lower Repair Costs vs. Replacement – Most tankless water heater repairs cost significantly less than a full replacement.
- Longer Equipment Lifespan – Regular maintenance and timely repairs can keep a tankless water heater running for 20+ years.
- Preserving Efficiency – Fixing minor issues early prevents larger, more costly breakdowns.
- Avoiding Installation Costs – Replacing a unit involves higher upfront costs, while repairs provide a budget-friendly alternative.
Common Problems with Old Tankless Water Heaters & How We Fix Them
1. No Hot Water or Water Not Heating Properly
Possible Causes:- Clogged heat exchanger due to mineral buildup
- Malfunctioning thermostat or sensor
- Gas burner or heating element failure
Our Repair Solutions:- Descaling the heat exchanger to remove mineral buildup
- Calibrating or replacing the thermostat/sensor
- Repairing or replacing the burner or heating element
2. Fluctuating Water Temperatures
Possible Causes:- Sediment buildup in the water lines
- Incorrect gas pressure
- Faulty temperature sensor
Our Repair Solutions:- Flushing and cleaning the water lines
- Adjusting gas pressure settings
- Replacing faulty temperature sensors
3. Tankless Water Heater Shutting Off Unexpectedly
Possible Causes:- Overheating due to clogged vents
- Gas supply issues
- Faulty flow sensor
Our Repair Solutions:- Cleaning air intake and exhaust vents
- Inspecting and fixing gas supply connections
- Repairing or replacing the flow sensor
4. Error Codes Displayed on the Unit
Possible Causes:- Electrical issues
- Gas valve problems
- System pressure imbalances
Our Repair Solutions:- Diagnosing error codes using manufacturer guidelines
- Fixing or replacing faulty components
- Resetting the system for optimal performance
5. Water Leaks from the Tankless Unit
Possible Causes:- Loose or damaged water connections
- Cracked heat exchanger
- High system pressure
Our Repair Solutions:- Tightening or replacing connections
- Repairing or replacing the heat exchanger
- Installing a pressure relief valve if necessary
Our Old Tankless Water Heater Repair Process
1. Thorough System Inspection
We conduct a
detailed assessment of your tankless water heater to
identify the root cause of the problem.
2. Providing a Transparent Repair Estimate
We provide a
clear, upfront estimate with no hidden fees before proceeding with any repairs.
3. Professional Repairs & Component Replacement
We use
high-quality replacement parts and advanced tools to restore your water heater’s performance.
4. Testing & System Optimization
After the repair, we perform
extensive testing to ensure your tankless system is operating at peak efficiency.
5. Preventative Maintenance Recommendations
We provide
maintenance tips to prevent future breakdowns and extend the life of your water heater.
Cost of Old Tankless Water Heater Repair in Metro Vancouver
The
cost of repairing an old tankless water heater depends on the issue, the unit’s age, and the extent of the repair.
Average Repair Costs:- Minor Repairs (thermostat, sensor, valve adjustments): $150 – $400
- Moderate Repairs (burner, heating element, vent cleaning): $400 – $800
- Major Repairs (heat exchanger, gas valve replacement): $800 – $1,500
Note: If your unit is
over 15 years old or requires repairs exceeding
50% of the cost of a new system, replacement may be a more cost-effective solution.
Why Choose CANRO Heating & Cooling for Tankless Water Heater Repairs?
- 25+ Years of HVAC Experience in Metro Vancouver
- Licensed, Bonded & Certified Technicians
- Same-Day & Same-Day Emergency Repair Services
- Transparent Pricing with No Hidden Fees
- 100% Customer Satisfaction Guarantee
Service Areas for Old Tankless Water Heater Repair
We provide
tankless water heater repair services throughout
Metro Vancouver, including:
- Vancouver – Downtown, Kitsilano, East Vancouver, West Side, and more.
- Burnaby – Metrotown, Brentwood, Lougheed, and surrounding areas.
- Richmond – Steveston, Brighouse, Ironwood, and more.
- Surrey – Guildford, Fleetwood, Newton, South Surrey, and more.
- Coquitlam & Port Coquitlam – Burquitlam, Westwood Plateau, and more.
- New Westminster, Langley, Maple Ridge, Delta, and White Rock.
Should You Repair or Replace Your Old Tankless Water Heater?
While repairs can
extend your unit’s lifespan, replacement might be the best option if:
- Your tankless water heater is over 15 years old
- Repairs are becoming frequent and costly
- The unit can’t meet your household’s hot water demands
- Your energy bills are rising due to inefficiency
If replacement is necessary, we offer
high-efficiency tankless water heaters from
top brands like Navien, Rinnai, Noritz, Bosch, and Rheem.
Frequently Asked Questions (FAQs) About Old Tankless Water Heater Repair in Metro Vancouver
Tankless water heaters are known for their efficiency and long lifespan, but like any appliance, they can develop issues over time. If your old tankless water heater is producing inconsistent hot water, showing error codes, or making unusual noises, it may need repairs. CANRO Heating & Cooling has been serving Metro Vancouver since 1999, providing expert tankless water heater repairs, maintenance, and replacements. We offer free estimates, same-day service, and same-day emergency repairs.
Below, we answer the most common questions about repairing old tankless water heaters. For expert service, call CANRO Heating & Cooling at 604-359-1081 or email
info@Canroheat.ca.
FAQs About Old Tankless Water Heater Repair
•
Can an old tankless water heater still be repaired? Yes, many issues with older tankless water heaters—such as ignition problems, mineral buildup, and sensor malfunctions—can be repaired, extending the unit’s lifespan.
•
How much does it cost to repair an old tankless water heater in Metro Vancouver? Repair costs typically range from $200 to $1,500, depending on the issue. Minor repairs like flushing the system or replacing a sensor are on the lower end, while major repairs like heat exchanger replacement are more expensive.
•
What are the common problems with old tankless water heaters? Common issues include:
- No hot water or fluctuating temperatures
- Low water pressure
- Error codes on the display
- Delayed ignition or burner failure
- Strange noises (whistling, banging, or gurgling)
- Water taking too long to heat up
•
Why is my tankless water heater not providing hot water? Possible causes include a clogged heat exchanger, a faulty flow sensor, or gas supply issues. CANRO Heating & Cooling can diagnose and fix the issue.
•
What should I do if my tankless water heater is displaying an error code? Error codes indicate specific problems, such as ignition failure, overheating, or water flow restrictions. Check your user manual or call CANRO Heating & Cooling for professional troubleshooting.
•
Why is my tankless water heater shutting off randomly? This could be due to a clogged inlet filter, a failing thermostat, low gas pressure, or excessive scale buildup inside the unit. Regular maintenance can help prevent these issues.
•
Why is my hot water pressure lower than usual? A clogged water filter, mineral buildup, or a partially closed shut-off valve can restrict water flow in an old tankless water heater.
•
Do you offer emergency repairs for old tankless water heaters? Yes, CANRO Heating & Cooling provides same-day emergency repair services for tankless water heaters across Metro Vancouver.
•
How long do tankless water heaters last? Tankless water heaters typically last 15-20 years. If your unit is near the end of its lifespan and requires frequent repairs, replacement may be a better option.
•
Is it worth repairing an old tankless water heater, or should I replace it? If repair costs exceed 50% of the price of a new unit, replacing the system may be more cost-effective. We can provide a detailed cost analysis to help you decide.
•
Why is my tankless water heater making loud noises? Whistling or banging noises usually indicate scale buildup in the heat exchanger, which restricts water flow. Flushing the system can help resolve the issue.
•
Can I repair my old tankless water heater myself? Basic maintenance like flushing the unit can be done by homeowners, but repairs involving gas lines, electrical components, or the heat exchanger should be handled by a licensed professional.
•
What brands of tankless water heaters do you repair? We service all major brands, including Navien, Rinnai, Noritz, Bosch, Takagi, Rheem, and more.
•
How can I prevent problems with my old tankless water heater? Regular maintenance, including flushing the heat exchanger, checking filters, and inspecting gas connections, can help extend the life of your unit.
•
What should I do if my tankless water heater has a gas leak? Turn off the gas supply immediately, open windows for ventilation, and call CANRO Heating & Cooling for emergency service at 604-359-1081.
•
Why does my water temperature fluctuate? Inconsistent temperatures could be due to a failing temperature sensor, a clogged heat exchanger, or an undersized unit struggling to meet demand.
•
Do you offer free estimates for tankless water heater repairs? Yes, CANRO Heating & Cooling provides free estimates for all tankless water heater repairs and replacements.
•
Can I upgrade my old tankless water heater to a newer model? Yes, upgrading to a modern, high-efficiency tankless water heater can improve performance and reduce energy costs.
•
What areas do you service for old tankless water heater repairs? We serve Metro Vancouver, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, Langley, Delta, and surrounding areas.
•
How do I schedule a repair for my old tankless water heater? Call CANRO Heating & Cooling at 604-359-1081 or email
info@Canroheat.ca to book an appointment.
If your old tankless water heater needs repairs, maintenance, or replacement, contact CANRO Heating & Cooling for expert solutions and same-day service.
Schedule Your Old Tankless Water Heater Repair Today!
Don't let
water heater issues disrupt your daily routine!
Contact CANRO Heating & Cooling today for expert
tankless water heater repair services in Metro Vancouver.
📞
Call Us: 604-359-1081
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Email Us:
info@Canroheat.ca 🌎
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CANRO Heating & Cooling Trust CANRO Heating & Cooling for professional, affordable, and reliable tankless water heater repairs. Get your hot water running again today! Expert insights: tankless water heaters in Metro Vancouver
Metro Vancouver homes have specific requirements when it comes to tankless water heaters, driven by climate, code, and the local housing stock. This page covers the essentials. A condensing tankless gas water heater in Metro Vancouver delivers endless hot water at 90%+ efficiency, fits on a wall (reclaiming 25 sq ft of floor space vs a tank), and lasts 18-22 years.
Metro Vancouver's coastal climate brings salt-laden air to coastal neighbourhoods (Steveston, Tsawwassen, White Rock) that accelerates outdoor coil corrosion — an important factor in equipment selection and placement. CANRO has worked with tankless water heater systems across Metro Vancouver since 1999, including installations and service calls in Lonsdale, Tsawwassen, Sullivan and Hamilton.
Technical considerations for tankless water heaters in Metro Vancouver
Sizing. Tankless sizing focuses on peak GPM (gallons per minute) at design temperature rise. Vancouver's 7-9°C incoming water needs about 32°C rise for typical use — most family installs need a 199,000 BTU unit.
Lifespan. Annual descaling is essential in Vancouver's moderately hard water — without it, scale build-up on the heat exchanger cuts capacity by 30% and shortens lifespan to under 10 years.
Warning signs. Tankless issues include flow-rate drops (scale), ignition lockouts (gas pressure or flame-rod fouling), condensate-trap clogs, and recirculation pump faults on units with built-in pumps.
What CANRO checks during a tankless water heater service
- Full descale of heat exchanger
- Flame-rod inspection and clean
- Combustion analysis
- Flow-sensor test
- Condensate trap clean
- Air-intake screen clean
- Gas pressure verification (inlet + manifold)
- Internal filter clean
- Error log download and review
- Recirculation pump check if installed
Why Metro Vancouver homeowners choose CANRO for tankless water heater work
- Founded 1999 — over 25 years of a tankless water heater installations and service calls in Metro Vancouver
- 4.9-star rating from 85+ verified Google reviews
- Direct workers, no subcontractors — the tech who installs your system is the one who answers when you call back
- Free written estimates on installations; transparent diagnostic fee on repairs (credited toward the repair if you proceed)
- TSBC-licensed gas fitter, Red Seal HVAC, WorkSafeBC and liability insured
- Permits filed and inspected on every gas-appliance install (BC Code-compliant)
- Brand specialist coverage: Viessmann, IBC, Baxi, Laars, Weil-McLain, Navien, Rinnai, Bradford White, Carrier, Lennox, Bryant, Goodman, Mitsubishi, Daikin, Bosch and more
Tankless water heater FAQs
Does tankless save money vs a hot-water tank?
Tankless gas water heaters cut operating cost 25-40% vs a tank because they eliminate standby heat loss. Upfront cost is higher ($3,500-$6,000 installed vs $1,800-$3,200 for a tank), but most homes recover the difference in 6-9 years on gas savings.
Can a tankless run two showers at once in a Vancouver winter?
Yes, with proper sizing. A 199,000 BTU condensing tankless will run two showers (at typical 1.8 gpm each) simultaneously through a Vancouver winter. For larger demand (3+ showers + dishwasher), consider linked tankless units or a combi boiler with built-in DHW recirculation.
What's recirculation, and do I need it?
Recirculation pumps return cooled hot water from the far fixture back to the tankless, eliminating the cold-water wait. Many modern tankless units (Navien NPE-A, Noritz EZ) have built-in recirculation. Worth the upgrade for homes where the kitchen or master bath is far from the mechanical room.
How long does a tankless water heater last?
A condensing tankless gas water heater installed by a qualified contractor in Metro Vancouver lasts 18-22 years with annual descaling. Without annual descaling, lifespan drops to 10-12 years.
How much hot water can a tankless deliver?
A 199,000 BTU tankless in Metro Vancouver delivers about 5-7 gallons per minute at a 32°C temperature rise (Vancouver incoming water is ~7-9°C). That handles two simultaneous showers comfortably, or a shower plus a dishwasher.
How often does a tankless need descaling?
Annually in Metro Vancouver's moderately hard water. Without descaling, scale build-up on the heat exchanger cuts capacity by 30% within 3-4 years and shortens lifespan to under 10 years. CANRO descales tankless units as part of every annual service.
Book tankless water heater service in Metro Vancouver
To book tankless water heater service or get a free written quote for installation, call CANRO at (604) 359-1081 or email info@canroheat.ca. We service all of Metro Vancouver including Lonsdale, Tsawwassen, Sullivan and Hamilton.
This guide was written by the CANRO Heating & Cooling team based on 25+ years of tankless water heater installation, repair and annual service work across Metro Vancouver. Last reviewed May 2026.
