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Troubleshooting Rooop Air Conditioner (Air Distribution Box, Wall Thermostat Controls)
12 Troubleshooting
The following table describes common occurrences that
are not a result of defective workmanship or materials.
Problem Possible cause Suggested remedy
The product does not operate. The circuit breaker has activated. Set or reset the circuit breaker.
A fuse has blown. Replace the fuse.
The heat pump is disabled (if
equipped).
The heat pump does not operate when the outside ambient
temperature is below 40 °F (4 °C).
The heat mode icon is missing
from the display.
The heat source is not selected on the dip switch.
The product does not operate
(or operates poorly) and the
RV is connected to the motor
generator.
The RV is not receiving power
from the motor generator.
Confirm the motor generator is running.
Confirm the motor generator is producing power.
Confirm the fuse or circuit breaker is open. Ensure the fuse
is not blown, or circuit breaker is on and not activated.
Contact the local service center.
The product does not operate
(or operates poorly) and the RV
is connected to a power supply
by a land line.
The RV is not receiving power
from the power supply.
Confirm the land line is plugged into the power supply.
Confirm the land line is properly sized for the product’s
power load.
Contact the local service center.
Frost forms on the evaporator
coil, as visible through the
air inlet hole with the filter
removed.
The product is producing very
cold output at a very low air
speed.
Inspect and clean the filter.
Open the air vents and remove any obstructions.
The outside temperature is
relatively low.
Adjust the thermostat to a warmer setting.
Operate the product on any Fan Only setting until the coil is
free of frost.
Contact the local service center.
The product does not maintain
the desired temperature.
The product is affected by the
RV’s heat gain from high outdoor
temperatures or humidity.
Park the RV in a shaded area.
Use window shades, blinds, or curtains.
1
Keep the windows and doors closed or minimize their use.
Avoid using heat-producing appliances inside the RV.
Operate the product in the Turbo Fan/Cool mode.
Start the product before the outside temperature increases.
Install an ambient temperature sensor.
Condensation forms on
ceilings, windows, or other
surfaces.
2
The air contains water vapor that
is below the dew point of the
surface.
Keep doors and windows closed when the unit is in
operation to reduce the formation of condensation.
The fan is running while the
furnace is on.
A manual fan speed is selected. Select Auto Fan mode.
1
For a more permanent solution to high heat gain, accessories like the Dometic outdoor patio or window awnings reduce the effects of direct sunlight.
2
During normal operation, this product is designed to remove a certain amount of moisture from the air, depending on the size of the space being conditioned.
The manufacturer of this unit will not be responsible for damage caused by condensation forming on ceilings, windows, or other surfaces.
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