Can I reset my Lochinvar boiler to clear the Outdoor Sensor Fault code?

You can reset once if your manual says it's safe. If the code returns, stop resetting — repeated resets on a genuine fault, especially gas or overheat faults, can be unsafe and may worsen the problem. Book a licensed repair instead.

Is the Outdoor Sensor Fault fault dangerous?

It's not usually an immediate safety emergency, but it should be diagnosed to prevent further damage and restore reliable operation.

How much does it cost to fix a Lochinvar Outdoor Sensor Fault fault?

Cost depends on the underlying cause — some causes (like low pressure or a dirty sensor) are minor, while others (like a gas valve or control board) cost more. We diagnose first and give you a clear price before any repair.

Lochinvar Error Code

Lochinvar Error Code Outdoor Sensor Fault

Outdoor reset sensor fault.

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If your Lochinvar combi boiler is showing error code Outdoor Sensor Fault, here's what it means: Outdoor reset sensor fault. This is a low-urgency fault. It usually doesn't stop heating or hot water, but it's worth addressing at your next service.

Lochinvar boilers report faults using descriptive smart system faults. Knowing the code helps a technician arrive prepared with the right parts, which usually means a faster, lower-cost repair.

What causes the Outdoor Sensor Fault code?

Error Outdoor Sensor Fault on a Lochinvar boiler is most commonly caused by one of the following:

Sensor failure

What you can safely check first

Note the exact code and your boiler's model number
Check the pressure gauge — low pressure triggers many faults
Confirm the gas supply is on and other gas appliances work
Reset the boiler once, per the manual, only if it's safe to do so
If the code returns, stop and call a licensed technician

Why this needs a licensed technician

Resolving a Outdoor Sensor Fault fault almost always involves the gas, combustion, sensor or pressurized side of the appliance. Under BC's Safety Standards Act, that work must be performed by a licensed gas fitter — and doing it correctly protects your warranty and your safety. We diagnose Lochinvar boilers, carry common parts, and verify clean combustion before returning your boiler to service.

This is not a DIY repair

Combi boilers are gas-fired appliances regulated under the BC Safety Standards Act. Opening the unit, touching the gas valve, or working on the flue without a valid BC gas-fitter licence is both unsafe and illegal. Diagnosing the fault is helpful — fixing it should always be left to a certified technician.

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Frequently Asked Questions

Other Lochinvar codes & help

Lochinvar Ignition FailureBoiler failed to establish a flame within the trial period.Lochinvar Flame LossFlame lost during a heating cycle.Lochinvar High LimitWater temperature exceeded the high-limit setting.Lochinvar Supply Sensor FaultOutlet temperature sensor out of range.Lochinvar Return Sensor FaultReturn temperature sensor out of range.All Lochinvar Error CodesFull list

Fix Your Lochinvar Outdoor Sensor Fault Fault

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