I doubt a 'universal remote control' will work for air conditioning. They are for televisions and DVD players.
If it is one of these, it should work out of the box.
Over 2000 CODES, OPERATES ALL LENNOX MODELS.
Full function universal remote control for all brands of air conditioners.
Large electric blue LCD backlight display.
A product to satisfy all exigencies, with an attractive design and a full range of original brands covered.
Extremely easy to program with auto-search feature.
With over 2000 codes in the memory it makes this product the most complete on the market.
The big display with Backlight and clarity of indication of the functions complete the huge success of this product.
User manual included.
Supplied with wall mount bracket.
Remote control is gold in colour.
*Requires 2X AAA Batteries.
REPLACEMENT UNIVERSAL LENNOX AC AIR CONDITIONER REMOTE CONTROL FULL...
Or you could ask Lennox direct?