Recommended Parts To Prepare - York YEFE BZTM-MOW1 Series Service Manual

5.2 E2/E3/E4 for ceiling&floor type and super slim cassette type&E4/E5/F2 for A6 duct
type (Open circuit or short circuit of temperature sensor diagnosis and solution)
Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED will display the failure.

Recommended parts to prepare:

• Wiring mistake
• Faulty sensor
• Faulty PCB
Troubleshooting and repair:
 Page 92 
C heck the connecti on betw een
tem perature sensor and PC B.
I s i t properl y w i red?
Y ES
M easure the resi stance val ue
of the sensor.
I s i t w i thi n acceptabl e
param eters?
Y ES
Repl ace the i ndoor PC B or the
outdoor el ectroni c control box.
N O Ensure proper connecti ons.
N O Repl ace the Sensor.