!
error Mam
Error Code E3
The internal temperature of the pump unit is outside optimal working range (5°C to 60°C).
? What Causes This
Temperature malfunction or extreme operating conditions.
✓ How to Fix It
Turn the device off and wait 15 minutes in appropriate conditions before reusing.
Source: page 20 of the official manual
From the manual
This error code appears in:
Mam Electric Steriliser And Express Bottle Warmer