Premium PPA1207 - Component Analysis and Specific Faults

4-4 Malfunction analysis for main parts
Components
Room temperature sensor
Heat exchanger sensor
Analysis
Measure resistance
Normal
Abnormal
Ambient temperature
Sensor resistance K
cut 0 short
15
20 25 30
35 40
7.45 6.08
5
4.13
3.43 2.86
Fan motor
measure the resistance at the ends of red wire and orange wire
Normal
Abnormal
While ambient temperature is 20 30, about 300 and 120
cut 0 short
Error code
E1
E2
23