GGMgastro CAPRI - Page 13

12
3.5. Fan is on, compressor is off.
Compressor stator feed-through
receives normal voltage.
Compressor engine humming.
Compressor jams.
Replace the compressor.
4. Compressor shuts down after
a short while
4.1. Compressor thermal
protection triggers
Condenser fan engine does
not work
Check the contacts. Replace the
condenser fan engine.
Compressor interfin space
clogged up.
Clean the condenser.
Weak fan blades tightening
on the shaft.
Tighten the fan blades.
The condenser entrance is
hot.
The air at the condenser entrance
should not be warmer than the
environment temperature air by
more than 2С.
The air cannot access the
condenser.
Allow the air access to the
condenser.
Noncondensable gases (air) in
the system.
Install a manometer on the liquid
line. If condensing pressure is
increased (condensing pressure
should be equal to that of the
incoming air plus 10-12K), refill the
system with the refrigerant.
The volume of the refrigerant
is higher than normal.
Remove excess refrigerant.
4.2. Compressor thermal
protection triggers, increased
power consumption, lower
winding resistance.
Compressor engine turn-to-
turn short circuit.
Replace the compressor.
4.3. Controller settings have
failed.
Reconfigure controller as per
settings table.
5. Increased temperature in the
refrigerated enclosure,
compressor is working.
5.1. Evaporator fully freezes-up.
Large frost deposit in the
evaporator. Automatic
defrosting system is
malfunctioning.
Check the contacts, defrost heaters
(if installed), controller and its setup.
Replace defective nodes.
The device is loaded with
warm products.
Defrost the evaporator. Load the
device with pre-cooled (frozen)
products.
No space between the loaded
products and the enclosure.
Make space between the loaded
products and the enclosure.
Air cooler fan does not work
(if installed).
Check the contacts. If the fan engine
is faulty, replace it.
5.2. Evaporator partially freezes-
up, the temperature inside the
device rises.
Dehydrating filter is partially
clogged up. Dehydrating filter
frame is overcooled.
Replace the dehydrating filter.
Partial refrigerant leak from
the system
Locate and fix the leak spot and pour
additional refrigerant into the system
to restore a normal level.
5.3. Evaporator does not freeze
up, the compressor works non-
stop.
No refrigerant in the system.
Locate and fix the leak spot. Drain
the system. Refill the device with the
required amount of refrigerant.