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| VRL-C 300/625/870
www.stiebel-eltron.com
oPeRATIoN | guARANTee | eNVIRoNMeNT ANd ReCYCLINg
Troubleshooting
Guarantee
The guarantee conditions of our German companies do not
apply to appliances acquired outside of Germany. In countries
where our subsidiaries sell our products a guarantee can only
be issued by those subsidiaries. Such guarantee is only grant-
ed if the subsidiary has issued its own terms of guarantee. No
other guarantee will be granted.
We shall not provide any guarantee for appliances acquired in
countries where we have no subsidiary to sell our products.
This will not affect warranties issued by any importers.
Environment and recycling
We would ask you to help protect the environment. After use,
dispose of the various materials in accordance with national
regulations.
guARANTee
eNVIRoNMeNT ANd ReCYCLINg
10.2 Fault messages and maintenance messages
display text
Fault
effect
Remedy
Filter dirty!
Filter change required
Maintenance
information
Replace the filters.
Reset the filter
runtime.
Maintenance re-
quired
Maintenance interval
required
Maintenance
information
Maintenance by
qualified contrac-
tor recommended
Outdoor air temp.
sensor
The sensor is faulty.
Lead break on outdoor
air temperature sensor.
The appliance
shuts down.
Notify your quali-
fied contractor.
SUP temp. sensor
The sensor is faulty.
Lead break on supply air
temperature sensor.
The appliance
shuts down.
Notify your quali-
fied contractor.
ETA temp. sensor
The sensor is faulty.
Lead break on extract air
temperature sensor.
The appliance
shuts down.
Notify your quali-
fied contractor.
EHA temp. sensor
The sensor is faulty.
Lead break on exhaust
air temperature sensor.
The appliance
shuts down.
Notify your quali-
fied contractor.
Air flow monitor-
ing SUP
No feedback from supply
air fan. The fan is faulty.
Cable/lead break.
The appliance
shuts down.
Notify your quali-
fied contractor.
Air flow monitor-
ing ETA
No feedback from ex-
tract air fan. The fan is
faulty. Cable/lead break.
The appliance
shuts down.
Notify your quali-
fied contractor.
Door open!
Condens. level!
Please check
The appliance cover is
not properly closed.
The appliance
shuts down.
Close the appli-
ance cover.
Fill level of condensate
pan has been reached.
Condensate pump over-
loaded or faulty.
The appliance
shuts down.
Notify your quali-
fied contractor.
Following units
are OFFLINE!
pLan network connec-
tion between the units
is interrupted. Incorrect
addressing of units and
programming units.
Notify your quali-
fied contractor.
Unit alarm:
Fault in another unit in
the pLan network.
Call up the unit
from the master
programming
unit. Display the
message. Notify
your qualified con-
tractor.
Fire!
The "smoke alarm" input
has responded.
The appliance
shuts down.
Leave the building.
If there is no fire,
have the smoke
alarm checked.
SUP temp. sensor
Exp�Board
Faulty sensor on exter-
nal hydraulic reheating
coil.
The appliance
shuts down.
Notify your quali-
fied contractor.
SUP frost risk
The supply air tem-
perature has dropped
permanently below 5 °C.
Possible causes are a
faulty exhaust air flap,
a faulty bypass and a
blocked extract air or
exhaust air duct.
The appliance
shuts down.
Notify your quali-
fied contractor.
Hydr. reheating
Limit SUP MAX
The set maximum supply
air temperature down-
stream of the hydraulic
reheating coil has been
exceeded. The mixing
valve on the reheating
coil or a sensor is faulty.
The appliance
shuts down.
Notify your quali-
fied contractor.
display text
Fault
effect
Remedy
Cool. mod. fault!
Fault in the internal
safety chain of the cool-
ing unit. High or low
pressure fault in the re-
frigerant circuit. There is
a leak in the refrigerant
circuit or the air routes
are blocked.
The appliance
shuts down.
Notify your quali-
fied contractor.
Outdoor temper-
ature <-25 °C.
Shutdown to pro-
tect cooling unit.
The appliance
shuts down.
Wait until the
outside temper-
ature has risen.
Acknowledge the
fault by pressing
and holding the
"Alarm" button for
2 seconds.
hx module fault ;
hxmodule offline ;
check hxmodule
Communication fault
between hx module and
controller. Cable/lead
break. The hx module is
faulty.
The appliance
shuts down.
Notify your quali-
fied contractor.
hx module
frost risk ; Sys.
switched off for
XX min.
The application limit of
the unit has not been
reached.
The appliance
shuts down.
The unit starts up
again automati-
cally. The warning
message is dis-
played again for
information.
Some units have a fault indicator on the supply air side which
illuminates red when there is a fault message or maintenance
message. As a result you are able to detect faults occurring in
units that are operated without a programming unit.
If you cannot remedy the fault, contact your qualified contrac-
tor. Give the number on the type plate to the qualified contractor
(000000-0000-000000). The type plate is located on the control
panel on the side of the appliance.
