Split & Multi-Split
Red Trip LED ON means different things on different Split & Multi-Split models. Enter your model number to see only your reading, or find your model below.
Models: XC15
1Verify Y terminal is connected to 24VAC at contactor coil. 2Verify voltage at contactor coil falls below 0.5VAC when off. 3Verify 24VAC is present across Y and C when thermostat demand signal is present; if not present, R and C wires are reversed. 1Compressor protector is open. 2Outdoor unit power disconnect is open. 3Compressor circuit breaker or fuse(s) is open. 4Broken wire or connector is not making contact. 5Low pressure switch open if present in the system. 6Compressor contactor has failed to close.
System and compressor check out OK
Models: XP15
1Verify Y terminal is connected to 24VAC at contactor coil. 2Verify voltage at contactor coil falls below 0.5VAC when off. 3Verify 24VAC is present across Y and C when thermostat demand signal is present; if not present, R and C wires are reversed. 1Compressor protector is open. 2Outdoor unit power disconnect is open. 3Compressor circuit breaker or fuse(s) is open. 4Broken wire or connector is not making contact. 5Low pressure switch open if present in the system. 6Compressor contactor has failed to close.
System and compressor check out OK Thermostat demand signal Y1 is present, but compressor not running NOTE − During 5-minute delay in LSOM the red trip LED will be on.
Models: XC15
1Verify Y terminal is connected to 24VAC at contactor coil. 2Verify voltage at contactor coil falls below 0.5VAC when off. 3Verify 24VAC is present across Y and C when thermostat demand signal is present; if not present, R and C wires are reversed. 1Compressor protector is open. 2Outdoor unit power disconnect is open. 3Compressor circuit breaker or fuse(s) is open. 4Broken wire or connector is not making contact. 5Low pressure switch open if present in the system. 6Compressor contactor has failed to close.
Thermostat demand signal Y1 is present, but compres- sor not running
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
