MEDICA-D 7/15 US
Operator Manual
ELGA
Page 38
MEDICA-D 7/15 US MANU40550 Version 2
– 05/17
9. TROUBLE SHOOTING
This section highlights the problems that could occur with the
MEDICA-D 7/15 US
unit and how to rectify them. The unit will normally
sound an alarm and the respective icons will flash. The alarm sound
can be silenced by pressing the mute button. If the unit cannot be
repaired using this manual please call either your supplier or the local
distributor.
(See Section 13 - Useful Contact Details).
Problems
Action
No display message
Check mains supply and lead.
Check that the mains power is switched on.
Check fuse in power inlet module and replace if blown.
Reservoir low level
audible alarm sounds
Press the crossed bell button to mute alarm.
The reservoir will automatically refill.
Check that process mimic is showing reservoir filling.
Check feedwater supply. Check connections to Reservoir.
UV lamp failure
audible alarm sounds
Press the crossed bell button to mute alarm.
Check that all electrical connections have been secured.
Follow UV lamp replacement procedure when applicable.
Optionally you can temporarily continue without the UV
lamp.
Ion-exchange
cartridge replacement
alarm
Replace Ion-exchange cartridge pack.
(See Section 7.2 -
Replacing the LC141 Ion-Exchange Cartridge).
Pre-treatment
cartridge replacement
alarm
Replace pre-treatment cartridge.
(See Section 7.1 -
Replacing the LC140 Pre-treatment Cartridge).
0.2µm capsule filter
replacement alarm
Replace 0.2µm capsule filter.
(See Section 7.4 - Replacing
the LC125 0.2µm Capsule Filter).
Water purity alarm
Check alarm set value is correct.
(See Section 5.4, Step 5
- Purity Alarm Setting).
Allow unit to recirculate. If alarm persists replace Ion-
exchange cartridge.
(See Section 7.2 - Replacing the
LC141 Ion-Exchange Cartridge Pack).
If problem persists beyond that expected from normal
operating conditions, then contact your local distributor.
Reservoir level
disconnect fault alarm
Check that the level controls are correct.
(See Section 5.3
- Step 3 - Connect High/Low Level Switch to Reservoir).
If problem persists then contact your local distributor.
Output flow below
specification
Check supply pressure.
(See Section 5.2 - Positioning the
MEDICA-D 7/15 US
).
Check RO flow-rate for the unit against the graphs shown
in Section 3.3, which details treated water output vs
temperature and feedwater pressure.
Check the inlet strainer / delivery strainer are clean
(See
Section 7.5/7.6 - Cleaning Inlet Strainer/Cleaning
Recirculation Strainer).
Contact service technician to fit or replace optional booster
pump.
0.2µm filter fouled, replace filter
. (See Section 7.4 -
Replacing the LC125 0.2µm Capsule Filter).
UV replacement alarm
Replace UV Lamp.
(See Section 7.3 - Replacing the
Ultraviolet Lamp).
Unit noisy
Open front door and secure pipework to stop vibration.
Vacuum alarm
Check ejector return flow is present. Remove vacuum line
and check vacuum. Contact your local distributor to
arrange a replacement LC154.
Fuse Removal
