WASHINGTON (AP) _ Some 33,000 Sears canister vacuum cleaners are being recalled because of a potential wiring problem, the Consumer Product Safety Commission announced Wednesday.

The recall involves Sears Kenmore vacuums sold between Nov. 1, 1986 and May 1 of this year, the agency said. They were manufactured by the Whirlpool Corp. of Benton Harbor, Mich.

The company is recalling the machines to check the wiring. If it was installed incorrectly it could result in an electrical short, possibly causing the cleaner hose to catch fire, the safety agency said. It said seven such incidents have been reported. In addition, a possibility of electrical shock could occur, officials said.

Involved are vacuum models 116.2643581, 116.2643583 and 116.2645082 which sold nationwide for prices ranging from $260 to $420.

Owners of these cleaners should discontinue use of them immediately, the commission said. ''Under no circumstances should these vacuum cleaners be used until they have been checked by a Sears service technician,'' the commission said.

Consumers should take the vacuums to the nearest Sears Service Center or retail store service counter to have them checked and repaired, if needed.

Persons needing more information can call 800-654-1820, an information number operated for Sears and Whirlpool, or the Safety Commission at 800-638- CPSC.