Troubleshooting Guide

ManualsBrandsRamsond ManualsHeatingSophia 48000 BTU 4 Ton 21.5 SEER 5 Zones Cassette Multi-Zone Ductless Mini Split Air Conditioner with Heat Pump 230V

Table Of Contents

Main parts check

1. Temperature sensor checking

Disconnect the temperature sensor from PCB, measure the resistance value with a tester.

Temperature sensors.

Room temp.(T1) sensor,

Indoor coil temp.(T2) sensor,

Outdoor coil temp.(T3) sensor,

Outdoor ambient temp.(T4) sensor,

Compressor discharge temp.(TP) sensor.

Measure the resistance value of each winding by using the multi-meter.