Itho Daalderop HRU 400, Installation & Use Manual

Page: 38 / 49

38
7. Malfunctions
7.1. Fault reports
The appliance has various fault messages that are displayed
on the appliance, on the app and on the Spider climate
thermostat:
●
Warning
●
Blocking
●
Locking
7.1.1. Error messages on the Interface
The device is equipped with an interface with two buttons
and two LEDs.
If the app cannot connect to the device, you can still connect an
accessory to the device in the following way:
a) Press and hold button B on the device. The LED will quickly
flash blue. You can pair an accessory for 2 minutes.
b) Connect the accessory (control switch,
CO2
or Rv sensor, or
Spider climate thermostat) as described in the documentation
supplied with the product.
Legend
A Dirtfilter reset
B Wifi mode
1 Status LED messages and errors ventilation unit
2 Status LED wifi mode and ventilation unit errors
The LEDs can display the following messages:
Status LEDs
Pattern Function
Blue*
Led 2
Orange**
LED 1
Red
Both leds
x Normal operation
x WIFI mode
x Filter dirt
x Error RV sensor
x Error temperature sensor
x Fault valve
x Communication error
x Volume sensor error
x Fan module fault
* In normal operation, LED 2 slowly chimes blue. When activating the
wifi mode with button B, LED 2 pulses blue faster and when the wifi
connection is active (pairing mode) LED 2 lights blue.
** At the filter warning LED 1 flashes orange.
Tip
The filter warning is shown on the interface of the unit, the app
and the Spider climate thermostat as well as on the
CO2
sensor
and the RH sensor. See Filter warning on page 29 .
Tip
Refer to Diagnosis of faults on page 40 to determine the
cause of a fault.