[PA Engineer]

You may be thinking of conduction, versus radiant heat loss.

Think about the Sun and how it heats the planet.

[Talisker]

You may be thinking of conduction, versus radiant heat loss. Think about the Sun and how it heats the planet.

No, without operational refrigeration units to force radiant heat loss, there's not enough surface area to radiate the excess heat into space. The spacecraft had a cooling system that needed power, and was shut down. Therefore the heat would have built up. Maybe not enough to kill anyone, but they would have gotten hotter, not colder.