Henny Penny SmartCombi ESC-220, Troubleshooting Manual

Page: 20 / 44

Smart Combi™ Service
No fan 2 (Only unit size 20.x)
Designation of the component(s) in the wiring diagram:
Fan M2, frequency controller V20 (lower chamber)
Description:
The electronic waits for a confirmation from the hall sensor (fan speed control) after the fan has been
started.. If this does not take place within 2 minutes, the error message "no fan 2" appears.
Troubleshooting:
LED status Description Steps to do
On Frequency controller works -
Off Frequency controller is not working Check input voltage, replace frequency
controller
3 flashes per
period
Over temperature of frequency
controller
Check all cooling fans, replace frequency
controller
6 flashes per
period
Short circuit at the fan Check fan and replace, if necessary
7 flashes per
period
Frequency controller doen´t start Wrong configuration of jumper J1 on the
frequency controller.
20
Ja
Open front panel. Check
the power supply and fuse
F2. OK?
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. Does the
fan
not start at any mode (there is no
confirmation on the display)?
Attention! The front panel and the
door must be closed. Otherwise the
door contact switch is open.
Yes
No
Ensure power supply /
replace fuse.
Ensure function of main
contactor K1. Replace
frequency controller.
Yes
Is the LED on the
frequency controller
flashing?
Yes
No
No
The LED is permanently on.
Replace fan.
Yes
Carry out troubleshooting
with help of chart.
Continuation on the
next page
No
Does the contactor K3 in
the „relay test K3“
energized and switched?
No
Replace contactor K3 or
rather the relay pcb. Please
note that the reserve relay
function isn´t available.
Yes
Switch the unit on. Is the
green LED on the
frequency controller
flashing or permanently
on ?