Plumbing · professional safety risk
Arrange tankless inlet-filter cleaning
Book qualified service for the model-specific inlet water-filter cleaning requirement.
- How often
- As specified by the confirmed tankless manual
- Time
- 15 minutes
- Difficulty
- Professional service
- Editorial status
- Published
Before you begin
How to do it
- Confirm the exact tankless model, fuel, installation type, and manual. Identify the inlet water filter rather than assuming a replaceable treatment cartridge.
- Give the qualified technician the specified filter-cleaning interval and any fault codes, reduced flow, leaks, or unusual sound.
- Have the technician follow the model cooling, isolation, cleaning, reassembly, and leak-check procedure. Related descaling and air-filter work follow separate requirements.
- Record completed inlet-filter service and use the confirmed interval. Do not convert combustion hours or optional maintenance notices into calendar estimates.
Stop and get help when
- Reduced flow or a persistent fault code
- Leakage or abnormal sound
- Gas or exhaust odor
Use qualified tankless-water-heater service. Leave the area and seek emergency help for gas, exhaust, or carbon-monoxide concerns.
Sources and review
Written by Upkeeping editorial team. Published Upkeeping guidance. Follow your equipment manufacturer’s instructions.