After losing the first three games of the series against the Heat, the Cavalry looked like getting swept in Sunday's fourth game after trailing 6-1 through five innings at Perth Ballpark.

But Jerrick Suiter, Jordy Barley and David Kandilas all singled home runs during a four-run burst in the top of the sixth, before a Robbie Perkins RBI double in the seventh tied the game.

Robinson's slam gave Canberra a 10-6 win to avoid a sixth-straight loss, improving their season record to 3-5.

Perth opened the series with a 1-0 win on Friday night before asserting their dominance in a double-header on Saturday.

The Cavalry were left struggling for answers to a Perth onslaught which saw the Heat secure 10-2 - which came off a nine run bonanza in the sixth - and 7-1 triumphs to take an unassailable lead in the four-game series.

It was Perth star Conor Lourey's hot run of form that left the Cavalry staring down the barrel of being on the wrong end of a series whitewash.

The Heat pitcher matched a career-high nine strikeouts during his equal-longest ABL start before the home side's offence rammed home the advantage against a hapless Cavalry outfit.

The Cavalry's bullpen faltered in the opening games of the series to leave manager Keith Ward searching for ways to arrest the slide.

Canberra are now bracing for the second leg of a hectic road trip when they travel to New Zealand to take on the a conference-defining challenge this week.

The Cavalry will open their series against the struggling Auckland Tuatara at North Harbour Stadium on Thursday night.

It looms as a massive chance for Canberra to regain some ground on the Northeast conference pace-setters in the Brisbane Bandits and Sydney Blue Sox.