REMKO RKL 491 DC - Manual (Page 19)

Error codes Fault description / note
38 Low power AC
39 High power AC(A)
40 AC(PCON) overcurrent active
41 IPM board error communication
42 IPM board general error
43 IPM board DC overcurrent
44 PFC overcurrent
45 Over-/undervoltage
46 IPM board current error
47 PFC over temperature
9 Care and maintenance
Regular care and observation of some basic points
will ensure trouble-free operation and a long
service life of the unit.
The device should be checked and thoroughly
cleaned after each prolonged use, but in any case
at least once per year.
The entire plant may only be maintained or
repaired by specialist authorised firms.
DANGER!
Prior to performing any work, ensure the equip-
ment is disconnected from the voltage supply
and secured to prevent accidental switch-on!
1
Fig. 18: Remove filter
1 Filter
n Clean the equipment using a damp cloth. Do
not use a jet of water.
n Do not use any caustic, abrasive or solvent-
based cleaning products.
n Only use suitable cleaning agents, even in the
event of severe soiling.
n Empty the condensate container and check if
the diameter of the condensate lines have
tapered as a result of soiling prior to and after
each operating season. If this is the case, they
must be cleaned.
NOTICE!
Check the level of dirt on the on the exchanger
fins.
n Clean the air filter on the indoor unit at regular
intervals, and more frequently if necessary.
n It is recommended that you take out a mainte-
nance contract with an appropriate specialist
firm.
This enables you to ensure the operational reli-
ability of the plant at all times!
NOTICE!
Never operate the indoor unit without the orig-
inal filter. The heat exchanger fins on the
indoor unit with soil up if operated without a
filter and the device will suffer performance
loss.
19