Henny Penny SmartCombi ESC 615 Troubleshooting Manual page 21

SmartCombi™ Service
Carry out step 8 „fan test" in the
service area. The fan speed and the
direction of rotation appears on the
display as a confirmation. The fan is
running, but there is no confirmation
(0 rpm) on the display.
Attention! The front panel and the
door must be closed. Otherwise the
door contact switch is open.
No
Carry out the fan test. At least one
of the four fan modes does not work.
Yes
Works the mode " right slow "?
Yes
Works the mode " right fast "?
Yes
Works the mode " left slow "?
Yes
Works the mode " left fast "?
Finally all fan modes should be test with the „fan test"!
Explanation:
K2 energizes D0
K3 energizes D1
K5 energizes D2
Fast speed mode:
x.1 approx. 1450 rpm
x.2 approx. 1600 rpm
Medium speed mode:
x.1 approx. 750 rpm
x.2 approx. 1000 rpm
Slow speed mode:
x.1 approx. 450 rpm
x.2 approx. 600 rpm
Check supply and plug X9 on the keyboard pcb.
Yes
The hall sensor in the fan has broken. Replace fan..
Yes
The keyboard pcb has broken. Exchange part.
Yes
Check the function of relay K3 and K5 with the help of the relay
test. (Voltage measurement at the respective outputs). If one of the
relays is broken, the „reserve relay" function can be used.
No
Exchange relay pcb if necessary
Check the function of relay K3 with the help of the relay test.
(Voltage measurement at the respective outputs). If the relay is
broken, the „reserve relay" function can be used.
No
Exchange relay pcb if necessary
Check the function of relay K2 and K5 with the help of the relay
test. (Voltage measurement at the respective outputs). If one of the
relays is broken, the „reserve relay" function can be used.
No
Exchange relay pcb if necessary
Check the function of relay K2 with the help of the relay test.
(Voltage measurement at the respective outputs). If the relay is
broken, the „reserve relay" function can be used.
No
Exchange relay pcb if necessary
Fan mode
Right slow
Right medium
Right fast
Left slow
Left medium
Left fast
1 = 230V measured against N
0 = no voltage
Input
D2 D1 D0
1 1 1
1 1 0
0 1 0
1 0 0
1 0 1
0 0 1
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