North Patchogue fire commissioner candidate Daniel Dosher Jr., who was trying to unseat incumbent Lawrence Santangelo, lost by one vote Tuesday, and a commissioner’s race in Wading River was undecided because of a contested ballot, officials said Wednesday.

Dosher lost to Santangelo, 57-56, for a five-year term on the board. Dosher could not be reached for comment.

In Wading River, former commissioner Randy Hintze appeared to defeat another former commissioner, Michael Harrigan, 282-281, in a contest to complete the final year of an unexpired five-year term. The election was not certified because of a dispute over a vote that was not included in that tally, district manager Greg Michalakopoulos said.

Republican Suffolk County election commissioner Nick Lalota said Wednesday the issue was whether a voter legally resided in the district. He said the board would issue a recommendation but could not decide the election because the board has no jurisdiction over fire district votes.

Also in Wading River, a $6.8 million proposition on fire house improvements was defeated, 405-203.

In other fire district races:

Amagansett: Dwayne Denton defeated the incumbent, J. Kent Howie for a five-year term.

East Islip: Incumbent Thomas Drywa defeated Matthew Maroney for a five-year term. Eric Flynn defeated Jay Nieves for a four-year term. Leonard R. Najdek defeated Anthony DiSanti and Richard Fox for a three-year term.

Eatons Neck: Voters approved a referendum to extend the local Length of Service Award Program, or LOSAP, by 10 years.

Farmingville: Frederick Peabody defeated Alexander Wilson for a five-year term.

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Gordon Heights: Commissioner Avery Dean defeated challenger Willie Gadson for a five-year term.

Lindenhurst Village: Two propositions — one amending LOSAP benefits and the other creating a contribution plan for new volunteers — passed.

Mattituck: Brian Williams defeated James Parsons for a five-year term.

Medford: Commissioner Charles Jagde won a new five-year term, defeating Richard Coleman.

Melville: Challenger Phillip Foundos unseated incumbent James T. Coschignano for a five-year term.

Port Jefferson: Thomas Meehan defeated Thomas Coyle for a five-year term.

Ridge: Incumbent Jeffrey Campo beat challenger Steve Vecchia for a five-year term.

Selden: Richard Cotty defeated Roderick Davidson.

Stony Brook: Incumbent Paul Degen defeated Ronald L. Gerry for a five-year term.

Terryville: Challenger Michael Dyroff unseated incumbent Salvatore Garafalo to win a five-year term.

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Wading River: Commissioner John McManus retained his seat by defeating Tim Deveny for a new five-year term.

West Sayville-Oakdale: Michael Chiesa defeated Diane Setter and Jeffrey Walsh for a seat with a five-year term.

Inwood: Challenger Anthony Rivelli defeated incumbent Tom Havey for a five-year term.

Manhasset-Lakeville: Challenger Steven Flynn defeated incumbent Donald T. O’Brien for a three-year term.

South Farmingdale: John Collins defeated Paula Scavelli for the last two years of an unexpired term. Incumbent Thomas Mastakouris defeated Karen Sullivan for a five-year term.

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CORRECTION: The winning candidate for Amagansett fire commissioner was incorrectly identified in a previous version of this story. Dwayne Denton defeated the incumbent, J. Kent Howie.