A practical, step-by-step maintenance checklist for Rinnai tankless water heaters, covering annual descaling, filter cleaning, and which tasks require a licensed BC gas technician.
Rinnai Boilers
Common Rinnai tankless error codes
by alisepanel@gmail.com | Jul 7, 2026 | Rinnai Boilers
Rinnai tankless water heaters flash two-digit error codes when a safety system trips — most point to venting, ignition, or gas supply issues. Here’s what the common codes mean and when Metro Vancouver homeowners should call a licensed technician.
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