Coleman mach 3 ac freezing up
We are having a freeze up problem with the ducted Coleman mach 3 ac unit. The evaporator is clean and the filter is new. We run it on high cold and turn the thermostat down from max cold. This past we...
Forum Discussion
Bob Landry wrote:
Disabling the condenser fan if it were possible, would do nothing but cause the unit to kick off on high head pressure. Not knowing what refrigerant your company's split systems used, I can't comment on the effect of turning off the condenser fan, and that may have worked on those but this thread is about RV rooftop units. The condenser is where the heat transfer takes place so why would you want it to run hot enough to shut the AC down. There are no RV rooftop units that have a separate motor for the evaporator and condenser.
Has anyone else used a RV rooftop A/C for cooling the interior when the OAT is that low? Doesn't that low OAT have the effect of dramatically increasing the condenser section's ability to condense the refrigerant gas to liquid form?
