BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
17 L22-405
COMPONENT TROUBLESHOOTING (CONTINUED)
Auto Filter Board Flash Codes:
The auto lter board has two status lights, one for ltering status and one for the oil level
probe status. Both can be found near the center of the auto lter board. If these LED’s are
not lit, this would be an indicaon that no DC power is present.
• Filter Status Light (Green, LED7 )
1. Also called the “heartbeat”, this LED indicates the status of the
actuator relays.
2. If this LED is not illuminated then there is no DC power to the auto
lter board.
3. All fryers in the fryer bank should be ashing the same code.
4. Table 2 shows the dierent ash codes and their meaning.
• Oil Level Probe Status Light (Red, LED22)
1. Indicates the status of the oil level probe.
2. This is a two digit code. The rst digit is a slow ash. The second
digit is a quick ash. If the LED is only ashing 1 ash, the oil level
probe funcon is disabled.
3. The code may change at each auto lter board.
4. Table 3 shows the dierent ash codes and their meaning.
5. If a 2/5 ash code is displayed, follow the troubleshoong steps in
this document for checking the resistance of the oil level probe. An
issue exists with either the oil level probe or the auto lter board.
Code Descripon
1 Flash Draining
2 Flash Filtering
4 Flash Top O
6 Flash Disposing
8 Flash Idle
Table 2 - Status LED Flash Codes
Slow/Fast Flash Descripon
1 Flash Disabled
1/2 Flash
CommLink
Failure
2/2 Flash Detecng Oil
2/3 Flash
Detecng Oil,
Recent Top O
2/4 Flash Idle
2/5 Flash
Oil Level Probe
Fault
Table 3 - Oil Level Probe Status
LED Flash Codes
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General