Step Diagnostic Result Action
5 Does the fan turn by
hand? Disconnect the
electrical connector from
the fan and do a check
that it rotates freely by
hand.
Yes Go to step 6.
No Replace the fan.
6 Is there damage to the
harness?
Yes Repair or replace the
harness.
No Go to step 7.
7 Clean the connections. Is
there a 12 V supply to the
connector that the fan
connects to?
Yes Complete.
No Repair or replace the
harness.
The fan will not turn off
Step Diagnostic Result Action
1 Can the PTO speed be
detected?
NOTE: The PTO speed
must be detected to
activate the fan.
Yes Go to step 3.
No Go to step 2.
2 Is a fan relay in the ON
position when the fan is
set to OFF? Does the fan
stop when you remove a
relay?
Yes Replace the relay.
No Go to step 3.
3 Is there damage to the
harness?
Yes Repair or replace the
harness or fan.
No Refer to your approved
dealer.
1.6.3.6 Lamp diagnostics
Step Diagnostic Result Action
1 Do the status lamp
indicators on the
diagnostic screen
illuminate when lamps are
set to ON?
Yes Go to step 2.
No Go to step 3.
2 Are the keypad status
indicator lamps on?
Yes Go to step 3.
1 General
32 SimplEbale
79037906A