Telair Iceberg 12000, Installation And User Manual

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8.
TROUBLESHOOTING (for technical staff only)
Before performing the checks listed below, make sure that the ON/OFF switch is in the
ON position [Fig. 15 ref. 4], the thermostat is in the all-cold position [Fig. 15 ref. 2], and the fan speed
selector switch is in position 1 [Fig. 15 ref. 1].
1) PROBLEM The air conditioner does not start up
CHECK
Make sure that the infeed terminal of the air conditioner between the blue and the yellow wire is
powered at 230 VAC [Fig. 16 ref. 4].
OPERATION Check the differential switch, the fuse protection on the power supply line, the wholeness of the
power supply line.
CHECK Make sure that there is 230 VAC power between the blue and the brown wire of the voltage trans-
former [Fig. 16 ref. 15].
OPERATION Check the wholeness of the ON/OFF switch and its connections, and replace or reconnect if neces-
sary [Fig. 15 ref. 1].
CHECK Make sure that there is 12 VAC power between the pink and the yellow wire of the transformer
[Fig.18 ref. 15].
OPERATION If there is no voltage, replace the transformer.
CHECK Make sure that there is 12 VAC power between the pink and the violet wire of the transformer.
OPERATION If there is no voltage, replace the transformer.
CHECK Disconnect both blue wires from the DC feeder board, and check whether there is continuity be-
tween both ends [Fig. 16 ref. 14].
OPERATION If there is no continuity, replace the inductor [Fig. 16 ref. 13].
CHECK Make sure that there is 12 VDC between the red and the black wire of the DC feeder board
[Fig. 16 ref. 14].
OPERATION If there is no voltage, replace the feeder board.
CHECK Make sure that there is 12 VDC between the black wire of the relay [Fig. 16 ref. 2] and the red wire
of the fan speed selector [Fig. 16 ref. 8].
OPERATION Check the harness and the multi-wire connector [Fig. 16 ref. 7].
CHECK Make sure that there is 12 VDC on the fan speed selector [Fig. 16 ref. 8] between the orange and
the black wire of the relay.
OPERATION Replace fan speed selector.
CHECK Make sure there is 230 VAC between the white wire of the relay [Fig. 16 ref. 2] and the blue wire
of the feeder input terminal [Fig. 16 ref. 4].
OPERATION Replace the relay.
CHECK Make sure that when the hot/cold selector switch [Fig. 16 ref. 3] is positioned on cold, there is 230
VAC between the pink and the blue wire of the infeed terminal [Fig. 16 ref. 4].
OPERATION Replace the hot/cold selector switch.
CHECK Make sure that when the hot/cold selector switch [Fig. 16 ref. 3] is positioned on hot, there is 230
VAC between the grey and the blue wire of the infeed terminal [Fig. 16 ref. 4].
OPERATION Replace the hot/cold selector switch.
CHECK Make sure that there is 230 VAC between the violet wire of the thermostat [Fig. 16 ref. 5] and the
blue wire of the infeed terminal [Fig. 16 ref. 4] (when the ambient temperature is below 16°C, the
thermostat will not close its contacts, so this test must be performed at an ambient temperature over
20°C).
OPERATION Replace the thermostat
CHECK Make sure that when the hot/cold selector [Fig. 16 ref. 3] is in cold position, and after the plastic side
cover has been removed, the following are on the compressor [Fig. 16 ref. 11]: voltage at 230 VAC
between the blue and the white wire; voltage at 230 VAC between the black and the white wire;
voltage at about 250 VAC between the orange and the white wire.
OPERATION Check the connector and the harness. Replace the temperature switch on the compressor.Replace
the condenser [Fig. 16 ref. 10].
CHECK Make sure that there are 12 VDC between the green speed selector switch wire [Fig. 16 ref. 8] and
the black relay selector wire [Fig. 16 ref. 2].
OPERATION Check the harness and the multi-wire connector.