Why would my furnace kick off and say limited cycle on the code [light blinks4 times] ?on a coleman evcon

What brand of furnace and what was the code that you read. (the number of blinks and in what order.)

Furnace is overheating, limit tripped. See here (https://www.askmehelpdesk.com/heating-air-conditioning/heating-cooling-maintenance-repair-troubleshooting-frequently-asked-questions-58313-2.html#post269282).