Navien Boiler Error Error 016: Supply Thermistor Fault

Your Navien boiler has stored error Error 016 because the supply water temperature sensor reading is invalid. This is a safety-related diagnostic code that helps protect your system from further damage. CANRO Heating & Cooling provides expert diagnostic service for all Navien error codes throughout Greater Vancouver, with technicians who understand the specific conditions that trigger each code.

Diagnosing Navien Error Error 016

Professional diagnosis of error Error 016 involves several steps. Our technicians begin by retrieving the stored fault code from the control board's memory, then systematically test each potential cause. This includes measuring electrical values with multimeters, checking sensor resistance readings, verifying gas pressure, inspecting wiring harnesses for damage, and testing components individually. CANRO Heating & Cooling uses manufacturer-recommended diagnostic procedures for all Navien error codes.

Safety Considerations for Navien Error Error 016

Error Error 016 is a safety-related diagnostic code designed to protect your home and equipment. If you notice any unusual smells, sounds, or visible issues alongside this error code, prioritize safety. If you smell gas or suspect carbon monoxide, evacuate immediately and call emergency services from outside. Do not attempt electrical repairs or gas valve adjustments yourself. CANRO Heating & Cooling technicians are licensed, insured, and trained to handle all Navien error codes safely.

How CANRO Resolves Navien Error Error 016

When you call CANRO Heating & Cooling for error Error 016 on your Navien system, our dispatch team will note the error code and schedule the appropriate technician. Our service vehicles carry commonly needed parts for Navien equipment, including failed thermistor and wiring damage replacement components. We provide upfront pricing, clear explanations of the diagnosis, and professional workmanship on every repair. Most error Error 016 diagnoses are completed within the first hour of the service call.

Cost to Fix Navien Error Error 016

The cost to resolve error Error 016 on your Navien boiler depends on the root cause. Simple fixes like cleaning a flame sensor or replacing a capacitor are relatively affordable. More involved repairs such as gas valve replacement, control board replacement, or heat exchanger service will be more significant. CANRO Heating & Cooling provides a detailed diagnosis and written estimate before any work begins, so you can make an informed decision about the repair.

Preventing Navien Error Error 016 in the Future

Regular maintenance is the best way to prevent error Error 016 and other fault codes on your Navien system. Annual professional maintenance includes cleaning the flame sensor, inspecting wiring connections, checking gas pressure, verifying proper airflow, and testing all safety controls. CANRO Heating & Cooling offers comprehensive maintenance programs for Navien equipment. Well-maintained systems have fewer error codes and emergency service calls.

Safety Reminder

If you smell gas, suspect carbon monoxide or believe there is an immediate danger, leave the property and contact emergency services or the appropriate gas emergency authority. Do not remain inside — exit the building immediately and call for help from outside.

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