Cleaning And Maintenance - HEYLO DE 20 SH-U Betriebsanleitung

Electric heater DE 20 SH-U
Malfunction
Yellow indicator light is
not lit
Red fault lamp is lit up
Device heats up, fan
does not run
Tab. 10:
Table of malfunctions
See also
 Fan maintenance [
20

Cleaning and maintenance

The following principles apply when cleaning and maintaining the device:
These tasks may only be carried out by trained and authorized specialists.
a) Switch off the device before starting work and then pull out the mains plug.
b) Let the device cool down.
c) Wear suitable personal protective equipment.
d) Before recommissioning, install all the safety devices as attached at the factory.
e) Check that the safety devices function properly.
f) After completing the task, remove all the tools and objects from the working area around the device.
g) Use only original spare parts and accessories.
Maintenance work must be documented.
The replacement of electrical components must be carried out by a qualified electrician.
72 / 83
Possible cause
Blow-out temperature too high, air cannot
circulate freely,
Heating is not activated
Safety temperature limiter (STL) tripped. Device has been overheated. Eliminate
Motor protection has been triggered
Error on the temperature sensor
Fan defective, contactor defective
75]
Remedy
the black handle to the left and remove it.
Press the fault clear button of the safety
temperature limiter.
Check the heating program
the source of error and unlock the safety
temperature limiter.
Check the motor
Check the temperature sensors for loose
contacts, replace sensor if necessary
Send the device in for repair.
EN