CBS Miami

CAPE CANAVERAL (CBSMiami/AP) — Astronauts on the International Space Station were able traced smoke and a burning smell to a malfunctioning water heater in the galley.

NASA said there wasn’t enough smoke to trigger the alarms on Tuesday or warrant the use of masks by the six-man crew. The smoke came from a vent and dissipated within a half-hour or so.

Commander Steven Swanson says there was only a small amount of smoke and everyone was fine.

The astronauts quickly disconnected the electric water-heating unit and activated air purifiers in the Zvezda compartment, Russian for star.

On Wednesday, the astronauts installed a spare unit. NASA says it’s working normally.

A similar problem occurred in 2009.

The astronauts say they didn’t see anything unusual with the removed device.

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