Lennox MPA048S4S-1P User Manual

Lennox Mini-Split Service Manual / Page 247
4-Way Valve
1. Power on, use a digital tester to measure the voltage, when the unit operates in cooling, it is 0V. When the
unit operates in heating, it is about 230VAC.
If the value of the voltage is not in the range, the PCB must have problems and need to be replaced.
2 Turn off the power, use a digital tester to measure the resistance. The value should be 1.8~2.5 KΩ.

Lennox MPA048S4S-1P Specifications

General

Brand	Lennox
Model	MPA048S4S-1P
Category	Air Conditioner
Language	English