Nortec MH Series User Manual

Page 36

10-30

Page 32
2008-12-03

Warning Error

Cause

Remedy

LED Display LED Display

Maintenance due

Maintenance not performed
and/or maintenance
indication not reset

Red
flashes
and
yellow
lights

red and
yellow
lights

Maintenance due.

Perform
maintenance
according to
section 10-40 of
the installation
and operating
instructions
for the Nortec MH.
Then, reset the
maintenance
indication.

Maintenance

not

performed and/or
maintenance
indication not reset
within 168 h (1
week).

Perform
maintenance
according to
section 10-40 of
the installation
and operating
instructions
for the Nortec MH.
Then, reset the
maintenance
indication.

Maximum lifespan of the
UV lamp reached

red
flashes
and
yellow
lights

red and
yellow
light

Maximum lifespan
of the UV lamp
reached.

Replace UV lamp
and clean glass
tube

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.

Replace UV lamp
and clean glass
tube (see

1.4.2 in

section 10-40

then reset hours
counter of the UV
lamp.

Wrong UV lamp
installed.

Install correct UV
lamp.

No signal from humidity
sensor

Red
flashes

Red
lights

Sensor cable not
connected or
sensor cable
interrupted.

Connect/replace
sensor cable.

Humidity sensor
defective.

Replace humidity
sensor.