Hybrid Heater Codes

Rheem · ProTerra / Performance Platinum hybrid (Gen V, 240V)

Rheem ProTerra / Performance Platinum hybrid (Gen V, 240V) error code T131

Clean Filter Reminder

What it means

Air filter routine maintenance reminder

Source: Electric Residential Hybrid Water Heater Use & Care Manual With Installation Instructions for the Installer, AP23657 Rev 04, page 34

Also listed in: Electric Residential Hybrid Water Heater Use & Care Manual (earlier revision), AP23657 Rev 01, page 33

Also listed in: Electric Residential Hybrid Water Heater Use & Care Manual (earlier edition), AP21681, page 28

What Rheem says to do

1. Set mode to Electric or OFF. 2. Remove air filter and clean by washing with a mild detergent. 3. Dry air filter and reinstall. 4. Set unit to desired mode.

Last checked 2026-10-03.

Safety first

From the manufacturer's manual for this series.

The same code on other models

Codes mean different things on different heaters. Match the series to the model number on your rating label.

Other ProTerra / Performance Platinum hybrid (Gen V, 240V) codes