| Warning |
| Error |
LED | Display | LED | Display |
Maintenance due | Maintenance not performed | ||
|
| and/or maintenance | |
|
| indication not reset | |
|
|
|
|
Red |
| red and |
|
flashes |
| yellow |
|
and |
| lights |
|
yellow |
|
|
|
lights |
|
|
|
|
|
|
|
|
|
|
|
Maximum lifespan of the | Maximum lifespan of the | ||
UV lamp reached | UV lamp reached | ||
|
|
|
|
red |
| red and |
|
flashes |
| yellow |
|
and |
| light |
|
yellow |
|
|
|
lights |
|
|
|
|
|
|
|
No signal from humidity | No signal from humidity | ||
sensor | sensor | ||
|
|
|
|
Red |
| Red |
|
flashes |
| lights |
|
|
|
|
|
Page 32 2008-12-03
Cause
Maintenance due.
Maintenance not performed and/or maintenance indication not reset within 168 h (1 week).
Maximum lifespan of the UV lamp reached.
UV lamp not replaced or hours counter of the UV lamp not reset after replacement of the UV lamp. Unit switches off after 168 hours.
Wrong UV lamp installed.
Sensor cable not connected or sensor cable interrupted.
Humidity sensor defective.
Remedy
Perform maintenance according to section
for the Nortec MH. Then, reset the maintenance indication.
Perform maintenance according to section
for the Nortec MH. Then, reset the maintenance indication.
Replace UV lamp and clean glass tube
Replace UV lamp and clean glass
tube (see 1.4.2 in section
then reset hours counter of the UV lamp.
Install correct UV lamp.
Connect/replace sensor cable.
Replace humidity sensor.
