Method of changing an air filter of vehicle air conditioning system
First Claim
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1. A method for signaling a change of an air filter for an air conditioning system of a vehicle, comprising:
- turning on an air conditioner and setting a blower at a maximum level to set a passenger compartment temperature at a lowest temperature of the air conditioner;
sensing the presence of at least one signaling condition; and
signaling a need for a new air filter when an air conditioner compressor cycles five times or more and at least one said signaling condition is present.
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Abstract
A method of signaling for a change of an air filter of a vehicle air conditioning system is disclosed. The present invention uses a sensor installed in a conventional air conditioner and the appropriate time for changing the air filter is determined by checking compressor operation when a degree of airflow is decreased during air conditioner operation.
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Citations
5 Claims
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1. A method for signaling a change of an air filter for an air conditioning system of a vehicle, comprising:
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turning on an air conditioner and setting a blower at a maximum level to set a passenger compartment temperature at a lowest temperature of the air conditioner;
sensing the presence of at least one signaling condition; and
signaling a need for a new air filter when an air conditioner compressor cycles five times or more and at least one said signaling condition is present. - View Dependent Claims (2, 3, 4, 5)
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Specification