AM-3000 cooler error codes Er2 / Er5 / Er6

• Source-Date (SAST): 2025-07-15 16:40
• Dest: both
• Review-after: 2027-08-31
• Status: current

Facts

• Er2: water temperature higher than 550 (panel units as written).
• Er5: cannot get a temperature reading (sensor error).
• If Er2 and Er5 flash alternately, treat it as Er5.
• Er6: water not flowing, or flow-sensor error.