An RVer with a 2016 ERA 70C reported that the Alde 3010 still heats domestic hot water but provides very little coach heat after preparing for the 2026 season. Members suggested checking Alde 3010 resources and manuals, and the owner found multiple references pointing to possible air in the hydronic loop, noting the reservoir was bubbling heavily. The follow-up question focused on where the bleed valves are located and how to access them in the 70C, while another member asked whether the...
More...
An RVer with a 2016 ERA 70C reported that the Alde 3010 still heats domestic hot water but provides very little coach heat after preparing for the 2026 season. Members suggested checking Alde 3010 resources and manuals, and the owner found multiple references pointing to possible air in the hydronic loop, noting the reservoir was bubbling heavily. The follow-up question focused on where the bleed valves are located and how to access them in the 70C, while another member asked whether the issue was lack of heat at the heater or lack of air movement, such as a fan or fuse problem.
Bottom line
The likely direction was air in the Alde heating loop, but the bleed valve location and final fix were not resolved.
