Forum Discussion
Old-Biscuit
Jun 24, 2014Explorer III
The 'service manual' link provided doesn't include error codes 3 or 4 but this one does......LINK
E3....cooling unit has malfunctioned.contact Dometic Service
Not very helpful :S
Do you have any panel lights?
If NO.......the burner thermal fuse may have blown. Located on flue...red wire is dc +
Also check the 5A mini auto fuse on circuit board. Unplug 120V AC cord and DC power lead then remove cover.fuse lower left side
E3....cooling unit has malfunctioned.contact Dometic Service
Not very helpful :S
Do you have any panel lights?
If NO.......the burner thermal fuse may have blown. Located on flue...red wire is dc +
Also check the 5A mini auto fuse on circuit board. Unplug 120V AC cord and DC power lead then remove cover.fuse lower left side
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,270 PostsLatest Activity: Jun 18, 2025