Plumbing · high safety risk
Review tankless water-heater service
Review model-specific descaling and inspection needs for a tankless water heater.
- How often
- Annual service review; follow the model manual
- Time
- 15 minutes
- Difficulty
- Professional service
- Editorial status
- Awaiting human review
Before you begin
How to do it
- Find the exact model manual and service records. Tankless equipment has different maintenance needs from storage tanks.
- Review requirements for descaling, accessible inlet filters, and professional inspections. Adjust the interval for manufacturer instructions and local water conditions.
- If the service history is unknown or maintenance is due, arrange a qualified professional assessment and describe any fault codes or flow concerns.
- Record completed service or the documented review and set the next date using the manufacturer and professional recommendations.
Stop and get help when
- Gas or exhaust odor
- Leakage or wet electrical parts
- Persistent fault code
- Unusual temperature changes or reduced flow
Leave the area and seek emergency help for gas, exhaust, or carbon-monoxide concerns. Ask a qualified tankless-water-heater professional about descaling, filters, venting, and unresolved operating problems.
Sources and review
Written by Upkeeping editorial team. This draft is awaiting human subject-matter and safety review and is not eligible for search indexing.