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Keep Your Air Conditioning Running Smoothly

Wednesday, July 02, 2014 – Good Sam Extended Service Plan

The majority of RV travel takes place during warm seasons, or to regions of the country where it is relatively warm even during winter months. Personal comfort depends a great deal upon the use of an air conditioner. Roof-mounted air conditioners are most common, although some luxury RVs are equipped with central air systems. RV air conditioners are compressor- type units and work on the same operating principle as residential air conditioners.

Here are a few tips to keep your air conditioning running smoothly:

•When the outside temperature drops to below 75° F, the air-conditioner thermostat should be set to a mid-point between “warmer” and “cooler” to prevent ice buildup on the evaporator coil.

•If ice-up occurs, it is necessary to turn off the air conditioner to allow the coil to defrost before resuming normal operation. During the defrost period, operate the fan in the maximum airflow position. Airflow will be reduced by the blockage of the ice during this period. When the ice has melted from the coil, airflow will return to normal.

•Insure that AC voltage supply is proper. All air conditioners operate on 120-volt AC power and certain models with electronic controls require 12-volt DC wired to the control board.

•Keep the roof-mounted air conditioner unit clean. It should be kept covered in the off-season to prevent dirt, debris, and small animals from getting inside.

•Once a year, remove the cover shroud and, using compressed air, blow the dust, bugs, leaves, and other debris out of the unit.

•In the inside, remove the ceiling cover frequently and wash or replace the intake filter pads. The intake filters should be cleaned or changed at least every two weeks during periods of continuous use.

•Do not operate the air conditioner without the filter in place. To do so invites problems such as, lint, dirt, grease, and other airborne contaminants that accumulate in the cooling coil.

•Periodically inspect the air conditioner to make sure the bolts and nuts that hold the unit to the roof of the RV are tight and in good condition.

•Inspect the shroud to make sure it is being held securely to the unit and is not developing cracks or has not been damaged.

•Inspect the drain hole in the drain-pan area periodically. This must be kept clean, or the water removed from the inside of the RV will not be able to drain off properly.

•The evaporator bulkhead in the rear section of the air conditioner, which contains the compressor, the blower motor, and the condenser coil, is designed to dispose of any water that may enter. A watertight seal must exist along the entire bulkhead that separates the two compartments. Check for sealant along this section and add sealant to any area where none is visible.

In the event that your air conditioning does not work or is in need of a repair, let Good Sam Extended Service Plan (ESP) pay to fix any covered repair. Receive a free quote today.

Livingston , B. (2002). RV repair & maintenance manual . (4th ed.). Ripon Printers

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