However, second-placed had no problems on their artificial surface at the CNG Stadium and moved to within three points of the Ammies after a 5-1 win over eighth-placed Blyth Spartans.
Harrogate raced into a two-goal lead through John McCombe after 10 minutes and Jake Wright on 36 minutes - both from Joe Leesley corners - but they were pegged back by Sean Reid's far post finish on 36 minutes.
But Dominic Knowles bundled Ben Parker's effort over the line to make it 3-1 a minute before the interval.
George Thomsonmade it 4-1 just 8 minutes into the second half, before Wright made it a nap hand with a superb curling effort after 69 minutes.
Buildbase FA Trophy finalists Brackley Town`s title hopes took another blow following last Friday`s goalless draw with Harrogate, losing 2-1 at Aggborough to a now fourth-placed Kidderminster Harriers.
The goals came late though and Brackley struck first in the 81st minute through skipper Gareth Dean.
But two goals in 5 minutes, the first from defender Fraser Horsfall in the 83rd minute, the second from Dan Bradley 2 minutes from time, sealed Harriers vital victory.
The only other game to take place saw Chorley run out 2-0 winners at home to Bradford Park Avenue and move to within two points of the top seven and leave the visitors to go back over the Pennines with their play-off hopes all-but having disappeared after two holiday defeats.
Marcus Carver got the opener a minute before half-time after a cross from Alex Newby.
Jason Walker headed in the second in the 51st minute for Matt Jansen’s men.