Fault Causes; Troubleshooting For Motors With Led Display - Helios SilentBox SB EC Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
SilentBox® SB EC ... EC Centrifugal Fan Boxes
8.1

Fault causes

Fault
Fan does not start
Fan does not turn
(no longer turns)
Fuse has tripped
Vibrations
Abnormal noises
Fan no longer perfor-
ming (speed)
8.2

Troubleshooting for motors with LED display

– Status Out with flash code
The following series are equipped with Status LED in the cover of the motor terminal compartment (Fig.18)
SB EC 315 A SB EC 315 B
SB EC 400 A SB EC 400 B
"Flash" code (Diagnosis see table below)
OFF
ON
1 x
2 x
3 x
4 x
5 x etc.
6 x
7 x
8 x
9 x
Causes
– No voltage
– Impeller blocked
– Motor blocked
– Mains voltage failure
– Temp. monitoring system has
triggered
– Fuse has tripped
– Impeller is blocked or
contaminated
– Shorted coil in motor
– Supply line or connection
damaged
– Connected incorrectly
– Contamination
– Attachment-related resonance
– Grinding impeller
– Bearing damage
– Mechanical damage
– Insufficient air delivery
– Incorrect voltage
– Bearing damage
– Contamination
– Insufficient backflow
SB EC 355
15
Solution
Check mains voltage
Check connection according to wiring diagram
Clear blockage, clean, replace if necessary
Contact Helios customer services
Check mains voltage
- Check/clear inflow and outflow
- Check transport media, ambient temperature
- Check mains voltage
«Fuse has tripped»
Clear blockage, clean, replace if necessary
Contact Helios customer services
Replace parts, replace motor if necessary
(Contact Helios customer services)
Check, modify connection
Clean
Check or repair attachment
Clean impeller, replace if necessary
Contact Helios customer services
Carry out maintenance
Check/clear inflow and outflow
Check/modify connection
Contact Helios customer services
Clean
Widen backflow openings
Fig.18
LED
EN