GGMgastro CAPRI - Page 12

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10. LIST OF POSSIBLE MALFUNCTIONS AND FIXES.
Table 4.
Defect name, external and other
signs
Probable reason
How to fix
1. Device is connected to the
power grid but is not working.
1.1. The controller display is
dark.
No power in the power
socket.
Check the voltage in the power
socket.
No contact between the
power socket and the plug.
Enable a contact between the plug
and the power socket.
Controller is switched off.
Switch on the controller.
1.2. Error message on the
controller display.
Weakened connection
between the controller and the
sensor.
Enable a stable connection.
Controller sensor is out of
order.
Replace the sensor.
1.3. Chaotic symbols and lines
on the controller display.
Controller is out of order.
Replace the controller.
2. Compressor does not start.
2.1. No power on compressor
terminal block:
Break in electrical circuit.
Check the feed circuit and fix the
connection.
2.2. The device works when
positively closing contacts on
the magnetic starter.
Magnetic starter coil has
burned.
Replace the magnetic starter.
Control-circuit interruption
Fix the control-circuit interruption.
2.3. Bridges are installed on
startup protection relay but the
compressor keeps working.
Startup protection relay is
malfunctioning.
Replace the startup protection relay.
2.4. Automatic circuit cutout
triggers. Megohmmeter shows
short-circuit between
compressor engine phases.
Compressor engine shorting.
Replace the compressor.
2.5. Automatic circuit cutout
triggers. Megohmmeter shows
short-circuit between fan phases.
Electric fan engine shorting.
Check the fan engine cable
condition. If there is no shorting in
the cable, replace the fan engine.
3. Startup protection relay
triggers after 10-15 seconds after
switching on.
3.1. Starting condenser is
breached.
Replace the condenser.
3.2. Megohmmeter shows
winding short-circuit on
compressor frame.
Electric engine winding short
circuits to frame.
Test the equipment for continuity. If
the compressor is damaged, replace
it.
3.3. Megohmmeter shows short-
circuit between starting and
operating winding when
connector blocks are removed.
Interwinding short circuit in
the electric compressor
engine.
Disassemble terminal block and test
the output for continuity to discover
any shorting. If the compressor is
damaged, replace it.
3.4. Condenser fan is on,
compressor is off.
Compressor engine winding
is broken.
Measure engine winding output
resistance. If the winding is
interrupted, replace the compressor.