12-48
CONTROL SYSTEM
Revision Y06-01
Service Manual - LEX
12B.3.19 Self-test
x
When shorting the TEST jumper, the action will be per 1 second according to
following:
x
beep one -> Cool led on-> Cool led off, Heat led on-> Heat led off, power led
on-> power led off ,running led on-> running led off, timer led on-> timer led off
,filter led on-> filter led off -> step motor ( A and B) run to MAX angle -> IFAN in
Mid speed-> COMP on -> Comp off ,OFAN on -> OFAN off , RV on -> Valve off
,E.S.F on -> E.S.F off, Fresh Air on -> Fresh Air off ,Ionizer on -> Ionizer off ->
sensor test(see note1) -> step motor ( A and B) run to MIN angle -> beep two
then exit
Note:
If OCT is not 25 ± 2ºC, the power and operating led will turn on;
If RT is not 25 ±2ºC, operate led and timer led on; If ICT is not 25±2ºC, timer
and filter led will turn on.
12B.3.20
Jumper Settings
x
Self test (1)
x
Model (4)
x
IFAN speeds (PG MOTOR) (3)
x
RC or ST (1)
Note:
0 = Open Jumper (disconnect jumper)
1= close Jumper (Jumper is connected)
