Rinnai Error 25: Condensate Drainage Issue
The unit has detected a problem draining condensate (the acidic water condensing units produce). We diagnose and repair it across Greater Vancouver — same-day and after-hours.
The unit has detected a problem draining condensate (the acidic water condensing units produce).
Rinnai fault codes can vary slightly by model and series. Use this as a guide — the same code can have more than one cause. Our Technical Safety BC–licensed technicians read the code, confirm it against your unit's manual, and diagnose the true cause before any repair.
Likely causes of Rinnai error 25
- Blocked or frozen condensate line
- Failed condensate pump
- Trap blockage
- Drain routing problem
What you can safely check
- In winter, check the external condensate pipe for freezing
- Look for water pooling under the unit
- Check the drain is not blocked
Beyond these checks, do not open the unit or touch gas/electrical parts — BC law requires a licensed gas fitter. Call us for a proper diagnosis.
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Parts often behind Rinnai error 25
Genuine Rinnai parts we supply and professionally install — never for DIY.
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Rinnai Error 25 Repair Across Metro Vancouver
Related Rinnai Condensate Codes
Frequently Asked Questions
Fix Rinnai Error 25 Today
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