❗Error code "Err E3"

Please identify first when this code appears.

If the code appears as soon as the heat pump is switched on and show it systematically, it will be necessary to check the gas level on the manometer, as well as the good connection of the low pressure (LP) probe.

If the code appears randomly, or appears only once a day (for example in the morning, or at night ...), and the gas is good, then act as for fault E4.

In the event that the fault persists, despite these checks, it is necessary to provide your service technician with all the values of all the parameters.

In very cold air temperatures (around 0 ° C), the value of the EEV opening parameter is then important and it may be necessary to increase this value.

If the heat pump is installed abroad, make sure that the heat pump works well at 50Hz.