Defrost Sensor Error (dS F)
1
Reconnect or
repair the
connector
Is the Connector disconnected
or loose between Main PCB,
Defrost controller and Sensor?
Yes
No
2
Check the Sensor resistance.
Is resistance 0Ω (Sensor short)
or resistance Infinity Ω ( Sensor
open ) ?
Yes
No
Change the
Sensor
3
Check the Sensor resistance.
Is resistance normal?
Yes
4
Check the Temperature and
resistance refer to the table.
No problem?
Yes
5
Explain to customer
CON7
19
th
pin ~ 22
th
pin
Resistance [Ω]
23ºF / -5ºC 38k
32ºF / 0ºC 30k
41ºF / 5ºC 24k
50ºF / 10ºC 19.5k
59ºF / 15ºC 16k
CON7
Change
Main
PCB
No