Genuine OEM replacement condensate pump assembly for Coleman Mach 8 rooftop air conditioners and heat pumps that were originally equipped with a factory-installed condensate pump. This active pump collects water produced during cooling and dehumidification cycles and routes it off the roof and through the RV's existing drain system, preventing pooling, dripping into the interior, and rooftop water damage.
When your Mach 8 condensate pump fails, the symptoms are hard to miss: water pooling on the rooftop shroud, dripping through the ceiling boot, or the AC cycling off due to a flooded drain pan. This is the factory-matched replacement assembly from Coleman Mach -- the same part that shipped in your unit -- so fitment, wiring, and mounting are direct swaps with no modification.
Part number 47233A3091 (vendor part CMN47233A3091) is specific to Mach 8 models equipped with a condensate pump from the factory. Not all Mach 8 units include a condensate pump -- this part is only correct for units that originally had one installed. Verify your existing unit before ordering.
Manufactured to the same specification as the original factory assembly -- not an aftermarket substitute.
Pumps condensate off the rooftop unit and into the RV drain system rather than relying on gravity drainage alone.
Connects to the existing Mach 8 harness with the factory connector -- no splicing or rewiring required.
Designed and dimensioned for the Mach 8 drain pan and mounting points. Not a universal condensate pump.
Standard RV rooftop air conditioners rely on passive evaporation or simple gravity drainage to manage condensate. The Mach 8 with factory condensate pump takes an active approach -- particularly important in high-humidity climates, during extended operation, or in heat pump mode where condensate volumes can be substantial. When the pump assembly fails or becomes clogged, condensate backs up quickly.
Common failure signs include water dripping inside the RV near the ceiling boot, visible standing water inside the rooftop shroud, or intermittent AC shutdowns caused by a condensate overflow switch tripping. Replacing the full pump assembly -- rather than trying to service individual internal components -- is the standard repair approach recommended by Coleman Mach.
Tubing, clamps, mounting hardware, and shroud are not included. Reuse your existing drain tubing and hardware from the original assembly.
Not every Coleman Mach 8 unit includes a condensate pump. Units without a factory pump drain passively through weep holes or a drain tube routed to the exterior. This assembly is only correct for Mach 8 units that shipped with an active pump. If your unit currently has no pump and you are experiencing drainage issues, consult your unit's wiring diagram and parts list before ordering this assembly.
Replacing the condensate pump requires accessing the rooftop unit. Disconnect shore power and any generator supply before beginning. Inspect the drain pan and tubing for debris, algae, or kinking while the pump is out -- a clean drain path is essential for the new pump to perform correctly. Condensate tubing that has collapsed or clogged will cause the new pump to fail prematurely.