The Erne County started well with points from Corrigan, midfielder Ryan Bogue, Shea Curran and Eoin Morrissey. Warwickshire were then rocked by a Corrigan goal on 12 minutes.
The Exiles reduced to margin to three points with a brace of scores from Michael Ivors, but Fermanagh finished strongly as three further efforts from Bogue and one from Andrew Breslin, gave the Ulster men a 1-8 to 0-5 advantage at the interval.
They increased their lead to 14 points heading into the final 20 minutes, before Warwickshire were reduced to 14 men when midfielder Mick Bermingham was dismissed on 54 minutes. Warwickshire’s Kieran Courtney goaled a minute later, but a second goal from Corrigan eased Fermanagh nerves. Sub James O’Dwyer had a late consolation goal for the losers.
Scorers for Fermanagh: S Corrigan 2-3, R Bogue 0-4 (3f, 1 s/line), P McGoldrick (2f), S Curran 0-2 each, J Duffy, E Morrissey, A Breslin, D McGarry 0-1 each.
Scorers for Warwickshire: K Courtney 1-1, J O’Dwyer 1-0, M Ivors 0-2 (1f), C Brough, M Bermingham 0-1 each.
FERMANAGH: D McPhillips; D Teague, C McGarry, E Mahon; F McBrien, M Slevin, K Kehoe; B Smith, R Bogue; J Duffy, E Morrissey, JP McGarry; S Corrigan, S Curran, A Breslin.
Subs: D McGarry for Smith (27), P McGoldrick for Breslin (43), P Timoney for D McGarry (59), F Bannon for Mahon (66).
WARWICKSHIRE: M Cremin; R Wedel, D Neylon, N McNamee; C Brough, P Healy, K Boxwell; M Bermingham, C Behan; D Sheedy, J Bergin, K Courtney; E McCabe, C Maskey, M Ivors.
Subs: D Maskey for Courtney (21-25, blood sub), D Maskey for McCabe (41), B Griffiths for Sheedy (52), S Brough for McNamee (66), J O’Dwyer for Bergin (67), J Boxwell for C Maskey (70).
Referee: P O’Dwyer (Carlow).