RV Hydronic Heater Repair
AHE-450-DE3
This model of Aqua-Hot uses the special Camco -100 Boiler coolant.
This model may also be known as:
AHE-450-DW2
Changes From Previous Model
This model is first model in this series to be "Low Emissions"
The combustion chamber has a major redesign of the AHE-450-DE2 model
Changes made on this model:
- Combustion chamber has been redesigned.
- Combustion chamber now looks like this:
 |  |
| You need to replace gasket if you remove combustion chamber, here HDE-700-205 | |
Part Notes
- Control Thermostat - ELE-014-005
Expansion Tank, 3 QT (Zero Pressure System) - PLE-070-401
Interlock Switch - ELX-000-050
Diesel High Limit Thermostat - 215°F w/Spade Connectors - ELE-HLT-425
Electric High Limit Thermostat VAC 215°F - ELE-HLT-424
Electric High Limit Thermostat - 215°F with terminals crimped on - ELE-000-616-FRU
Thermostat, Low Temp Cut-Off w/Spade Connectors - ELE-LTC-608
- Control Board - ELE-PC4-010
- Zone, stir and engine preheat pumps (are no longer available). Pump upgrade kit, here: PLE-100-905-FRU
- Radiator cap - PLX-102-229
- Brand New Webasto Burner - WPE-909-180
- Reconditioned Webasto burner - WPE-909-180-R
Information on tank level sensors Tank Level Sensor Information
Routine service parts and kits - Routine Service Parts Scroll down page for filter and nozzle packages.
Common Problems
- None