51
DIAGNOSING AND REPAIRING OPERATING FAILURES
FAULT DESCRIPTION
POSSIBLE CAUSE
REPAIR MEASURE
The heater shuts
down after a
power outage.
The heater has switched off
on its own.
The electricity network has
suffered an outage and the
heater has been without
power.
This is a safety feature. Reactivate the heater as
normal.
The heater shuts
down during the
night.
ERR error message
Insufficient ventilation
The space being heated has run out of fresh air.
Ventilation in the space must be increased.
The heater shuts
down after a few
hours of
operation.
ERR error message
Insufficient ventilation
The space being heated has run out of fresh air.
Ventilation in the space must be increased.
The heater
produces smoke
and accumulates
soot.
There is a blockage in the
fuel system.
Incorrect fuel type
Drain the fuel tank and fill it with high-grade diesel
or fuel oil
The burner is not receiving
enough fresh air.
Insufficient ventilation
The space being heated has run out of fresh air.
Ventilation in the space must be increased and
the heater must be serviced.
The fuel filter is clogged.
Replace the fuel filter.
Noisy burner
The fuel filter is clogged.
Replace the fuel filter.
The fuel pump makes a
loud noise.
There is air in the fuel
system.
Bleed the fuel system as described in the
instruction manual.
FAULT DESCRIPTION
REPAIR MEASURE
The wifi light is on (not blinking) on the heater
display, but the mobile app keeps going offline.
Swipe down the screen of the mobile app to refresh it.
If that doesn't work, quit the app and try again.
The wifi light blinks once on the heater display
and the mobile app keeps going offline.
1. Check your wireless router for internet connection. It is also good to turn the
power off and on.
2. Press the UP and DOWN buttons simultaneously for 5 seconds, check that
the ding sound and wifi light are off, and then press again for 5 seconds to
check the wifi light.
3. If that doesn't work, turn the heater's main power off and on.
The wifi light blinks twice on the heater display
and the mobile app keeps going offline.
The wifi light twice blinking means that it is not connected to the wireless router.
Please check the following.
1) Install a wireless router close to the product. Depending on the location or
distance between the product and the wireless router, the RSSI (strength of the
wireless network signal) may vary, and the transmission time and data rate in
receiving may also differ.
2) Check to set your SSID (wireless router ID or name) to a combination of
English and numeric If you use special characters, the information might not be
properly transferred to the product modem and might not be connected.
3) You might not be able to connect depending on your network settings or
connection status. If you are not connected or have problems setting up your
network, contact your network service provider.
4) Turn the wireless router off and on
5) In the mobile app, select the network change menu in the product detail
menu to changing the wireless router.
6) Delete the product from the mobile app and register the product again from
the beginning. (Note: For iPhone, turn Bluetooth off and on in the phone settings
and forget the device named "AIRREX" on the device list.)
WIFI PROBLEMS
SUOMI
ENGLISH
SVENSKA NORSK D
ANSK
