H30
Panasonic
Water Pressure Sensor Error
Heater displays H30; may be associated with abnormal inlet water pressure or pressure sensor issues.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Faulty water pressure sensor, Blocked sensor port, Air in sensor line, Damaged wiring to sensor
How to Fix / Troubleshooting
Water leak risk: Turn OFF power and close water valves before removing any pressure sensor or piping.
- 1. Check inlet pressure: Ensure the building water supply is within Panasonic's specified range.
- 2. Clean inlet filter: Remove and clean the inlet filter to ensure proper pressure at the heater.
- 3. Inspect pressure sensor (qualified persons):
- Remove the front cover.
- Locate the water pressure sensor on the inlet or internal manifold.
- Check wiring and connector.
- 4. Bleed air: Open a hot tap fully to purge air from the system.
- 5. If H30 persists: Replace the water pressure sensor with a genuine Panasonic part.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Water Pressure Sensor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements