E4/E5/F2 (Open Circuit Or Short Circuit Of Temperature Sensor Diagnosis And Solu�On) (F2 Is Only For 22K Models) - Roland FAVORITE ON-OFF Series Service Manual

5.6 E4/E5/F2 (Open circuit or short circuit of temperature sensor diagnosis and
(F2 is only for 22k models)
Descrip�on: 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
Troubleshoo�ng and repair:
Check the connec�on between
Replace indoor or outdoor PCB
temperature sensor and PCB.
Is it properly wired?
YES
Measure the resistance value
of the sensor.
Is it within acceptable
parameters?
YES
NO Ensure proper connec�ons.
NO Replace the Sensor.
solu�on)
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