Trouble Shooting - Dantherm ACT-7 Bedienungsanleitung

Service Guide: Trouble shooting

Trouble shooting

Fault finding
Symptoms Display Problem
No air flow
from room
unit
Insufficient
air flow
from room
unit
HL
No cooling
HL
Call for a service technician, if you can't solve the problem or the problem reoccurs. Only a
competent electrician should attempt to rectify electrical supply problems. Only a competent
refrigeration engineer should work on the refrigeration system.
Power (230V)
OFF connected but
no function
Normal Blocked air
display ways
Unit is defrost-
ing
Refrigera-
tion system
HL
in danger for
overheat
HL
High pressure
state
H
(NB: Resetting
alarm needed -
see page 15)
Low pressure
state
L
(NB: Resetting
alarm needed -
see page 15)
Condensate
pump un-
able to reduce
water
Possible cause Action required
Power outlet in
Turn on electricity and/or check
wall is off/ dis-
mains fuse
connnected
Defect on electrical
Call for an electrician.
equipment/ cables
Clean the air filter
Room unit has
blocked air ways
(see instruction on page 16)
Unit is defrosting Do not adjust anything. Unit
in regular intervals will return to normal operation
(normal behaviour) after ten minutes.
Connect a T-split hose and two
Indoor tem- outdoor heat exchangers to the
perature too high same ACT 7. This will make the
(above 35 °C) unit operate in higher tempera-
tures.
Top up the ACT 7 room unit
Too little water/
header tank with water/glycol
glycol fluid in the
mixture.
system
(See instruction on page 7)
Clean the fan and the coil with
External heat
a vacuum cleaner or water and
exchanger has
a brush.
blocked air ways
(see instruction on page 16)
Check the interconnecting line
kinked hoses
for kinking and remove them
External heat
exchanger unit
Move external heat exchanger
mounted in very
to a cooler/ shaded place
high ambient tem-
perature
Leak in the water/
Call for a service technician.
glycol system
Clean the air filter of the room
Room unit has
unit
blocked air ways
(see instruction on page 16)
Loss of refrigerant Call for a refrigeration engineer.
Check the interconnecting line
Kinked hoses
for kinking and remove them
The unit has
If the symbol has not disap-
been unplugged
peared after 30 min., the water
without beeing in
has to be drained manually.
standby mode for
Call for a service technician.
30 min.
17