Troubleshooting - MCS Master DHP 20 Mode D'emploi

10 Troubleshooting

WARNING! Risk of poisoning by refriger-
ant, injury from burns, crushing or elec-
tric shock during troubleshooting
Ü All work in connection with troubleshoot-
ing and repairs must be carried out by
authorised personnel or the manufac-
turer.
Ü In the event of a malfunction, switch off
the device and secure it against inadvert-
ent switching on.
Fault/malfunction
No function available in
continuous or pump mode
(all indicators off)
Device switch is in position
ON (continuous mode), but
device fails to start (all in-
dicators off)
Fan running but there is no
condensate
Device is noisy and vi-
brates, condensate es-
capes
Device heats up, makes a
lot of noise and dehumidi-
fies poorly
Water escaping from
device
Red indicator lit
Table 1: Troubleshooting table
Ü Before starting work, allow hot compon-
ents to cool down.
Faults and malfunctions during
operation
In the event of a fault or malfunction, refer to
the table below. If necessary, contact the
HEYLO Customer Service.
Possible cause
No or incorrect power
supply
Overpressure protection
tripped due to high ambi-
ent temperature
Humidity or temperature
in room too low
Filter clogged
Refrigeration system de-
fective (in this case,
evaporator does not be-
come cold)
Device is not in level and
upright position
Insufficient air circulation;
function only available
when housing is closed
Leak in condensate sys-
tem
Pump runs dry
Remedy
Check the power cord and
mains connection
Wait until the device
switches on automatically
(approx. 5‑15 min)
Check the indoor climate
values using a thermo-hy-
grometer
Check filter and clean, if
necessary
Contact the manufacturer
Check the operating condi-
tions, particularly the in-
stallation site
Ensure that the air can cir-
culate freely; clean evapor-
ator and filter
Run condensate pump test
with water and locate leak
Check condensate pump
and drain hose for dirt/
blockage
11