5.4. Check ing the Sig nal Lamps
&
The green sig nal lamp is al ways on when the dryer is
op er at ing.
The red sig nal lamp goes on in the case of an alarm
mes sage, but can also flash shortly when the valve block is
changed.
5.4.1. Re placing the Bulb of the Sig nal Lamp
Set the re lease switch at “0" po si tion.
&
The green sig nal lamp goes off.
L
Wait un til the blower has stopped.
If there is a re turn air cooler in stalled, switch off its cool ant cir cuit.
L
Switch off the main switch of the dryer.
In ter rupt the mains sup ply so that the de vice can not be
switched on un in ten tion ally.
CTT 30 / CTT 60 / CTT 120
Main te nance 44
