E10
Atlantic
Low Refrigerant Pressure / Low-Pressure Switch Open
Atlantic heat-pump water heater displays E10 and the compressor will not start.
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
Refrigerant leak in circuit, low-pressure switch failure, wiring fault to pressure switch, blocked evaporator airflow causing low suction pressure
How to Fix / Troubleshooting
Critical safety: Refrigerant work must be performed by a certified refrigeration technician. Do not attempt to open the sealed circuit.
- Disconnect power and visually inspect the heat pump module for oil stains or corrosion on joints, which may indicate a refrigerant leak.
- Locate the low-pressure switch and check its electrical connector and wiring back to the control board.
- If wiring is intact, the switch may be open due to low refrigerant or a defective switch.
- Clean the air filter and ensure the evaporator coil is not blocked by dust, which can affect pressures.
- If E10 persists, contact an authorized Atlantic service center to check system pressures, repair leaks, and recharge refrigerant as needed.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Low-Pressure Switch
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements