ComDry M160L
9
Fault tracing
W
W
WARNING!
ARNING!
ARNING!
The unit must not be opened by anyone other than trained and qualified personnel, due to the risk of electrical
shock.
This chapter is intended to facilitate basic troubleshooting and to provide instructions for corrective actions.
Go through the troubleshooting list below. Contact Munters if the problem cannot be rectified.
Symptom
Indication/Alarm message
Possible cause
Action
Power supply fault.
Check power supply to the unit.
No display text
Blown fuse
Replace the fuse. For correct type and rating, see label
above power supply cord connection to the unit.
Green LED is flashing:
long on, short off
sequence
There is no need for
dehumidification. Measured
humidity is below the set
point
(mode Fan "DEM" or "INT").
None. The unit is in stand-by. It will start when the
measured humidity reaches the Set Value.
Alarm message:
[SENSOR FAILURE]
Broken sensor
Contact Munters.
Alarm message:
[HEATER FAILURE] or
[HIGH Ri TEMP] or
[HIGH R
t
TEMP]
- Over temperature
protection fuse might have
tripped
- Blocked filter, hose or duct
- Blocked impeller
Wait until the unit has stopped. Then disconnect the
power supply. Check that the filters, hoses or ducts are not
clogged.
To reset the over temperature protection fuse, the unit must
be disconnected from the mains and allowed to cool down.
If the alarm is reissued after the unit has cooled down and
the alarm has been reset, contact Munters.
Set Value RH is too low in dry
environment
Check if low Set Value RH is necessary. Adjust to higher
value.
Alarm message:
[HIGH Wt TEMP]
Rotor drive mechanism fault
Check rotor drive belt and drive motor.
Check through the dry air outlet that the rotor rotates at
approximately ten revolutions per hour. If rotor does not
rotate, contact Munters.
Condensate drain hose
clogged
Clean or replace the hose
Alarm message:
[DRAIN FAILURE]
Kinks on the hose
Make sure there are no kinks on the hose. Install the unit at
least 25 cm above the floor level.
Alarm message:
[MAINS VOLTAGE LOW]
Unit is connected to the
wrong voltage, or problem
with the supply
Check mains supply.
Unit has stopped
Alarm message:
[LONG STOP TIME]
Broken fan
Heater is on
Contact Munters.
Alarm message:
[TIME FOR SERVICE]
See section
Service interval alarm
.
Indication
Alarm message:
[NO COM]
CAN BUS empty plugs
or external connection
missing.
Reinstall plugs or connection cable. If alarm remains,
contact Munters.
37
Fault tracing
190TEN-1098-D1404
Содержание comdry m170l
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