Argo AMG21CDT, Technical Data & Service Manual

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7. TROUBLESHOOTING
7-1 The unit does not work
Check the voltage. Are NO Check the unit YES Check the electrical
there 198 ÷ 264 volts ? electrical cable supply line
YES
If it is impossible to
Check if programmer NO close the contact,
contact is closed (black - replace the
brown cables). programmer.
(IF INSTALLED)
YES
Check if there is supplied NO Check if tank micro -
voltage between 1-2 switch contacts are
the electric control (CE) closed.
(1 - 2 MT contacts)
YES
NO
Replace the electronic Check if the pilot NO Is the flickering alarm
control (CE) lamp is burnt. lamp on the control
Eventually replace it panel not visible ?
7-2 Electrical circuit interrupted after "ON" button is pressed
Check the unit hardness NO Insulate the short
Is it insulated ? circuit cable
YES
Check if the fan motor is NO Replace the fan motor
working (FMI) (FMI)
YES
Check the electronic NO Replace the electronic
control (CE) control (CE)
YES
Check the leds printed NO Replace the leds
circuit. printed circuit.
NO
Check the motor YES Replace the
programmer (P). Is it programmer (P)
short circuited?
(IF INSTALLED)
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