Controllers
GENERAL Assist Technical Reference UTY-LNHY Timer Setting How to set the ON, OFF, Program and Sleep timers using the wireless remote controller Applie...
Fri, 4 Sep, 2026 at 1:32 PM
General Assist Technical Reference Wired Remote Timer Setting – UTY-RNKYT ON/OFF Timer, Weekly Timer and Temperature Set Back Timer Programming referen...
Fri, 4 Sep, 2026 at 1:35 PM
General Assist Technical Reference Error Code 15.4 Incompatible indoor unit / indoor unit data acquisition / primary-secondary setting error Error 15...
Fri, 4 Sep, 2026 at 1:57 PM
General Assist Technical Reference Test Run from Remote Controller How to place an air conditioner into Test Run operation Instructions for wired and w...
Fri, 4 Sep, 2026 at 2:05 PM
GENERAL Assist Technical Reference Temperature Unit Setting – Fahrenheit to Celsius How to change the wireless remote controller display between °F and...
Fri, 4 Sep, 2026 at 2:12 PM
General Assist Technical Reference 3 Wire Remote Controller Signal Test Testing Y1, Y2 and Y3 at a 3-wire wired remote controller Use this procedure t...
Fri, 4 Sep, 2026 at 2:14 PM
General Assist Technical Reference UTY-RVNYN Error Code Check How to interpret fault information on the 3-wire remote controller The UTY-RVNYN 3-wire...
Fri, 4 Sep, 2026 at 2:15 PM
General Assist Technical Reference UTY-RNNYN Error Display How to enter self-diagnosis and read an error code For UTY-RNNYN 3-wire wired remote contro...
Fri, 4 Sep, 2026 at 2:16 PM
General Assist Technical Reference CA1 Error Reset Backlit Wall Controller Reset procedure for clearing a CA1 error and returning the controller to no...
Fri, 4 Sep, 2026 at 2:34 PM
General Assist Technical Reference 2/3 Wire Remote Controller Error 12.1 (C012 or C12) Remote controller DIP switch and wiring check If Error 12.1, C...
Fri, 4 Sep, 2026 at 3:35 PM