ICP DAS USA DFS2H324J2A Manuel D’Utilisation
12
TROUBLESHOOTING (Tables 6-8, and Fig. 19)
Table 6 — Service Indicators
LAMP STATUS
INDICATION
CORRECTION ACTION
Check the TH1 thermistor for correct resistance.
1 Flash
Faulty TH1 Sensor
Check for proper connection.
Replace thermistor if necessary.
Check the TH2 thermistor for correct resistance.
2 Flashes
Faulty TH2 Sensor
Check for proper connection.
Replace thermistor if necessary.
Check system pressures.
3 Flashes
Low Pressure
Check refrigerant charge.
Check thermistors (TH1 and TH2) for correct resistance.
Check system pressures.
4 Flashes
High Pressure
Check refrigerant charge.
Check thermistors (TH1 and TH2) for correct resistance.
Check operating voltage.
Check electrical connections.
Check operating voltage.
Check electrical connections.
WARNING
Be sure to check for broken wires or loose cable lugs
before troubleshooting system.
before troubleshooting system.
OPERATION LED.
INDICATES ERROR
INDICATES ERROR
CLEAN FILTER INDICATOR
FLASHED AFTER 250 HOURS
OF OPERATION
FLASHED AFTER 250 HOURS
OF OPERATION
POWER LED.
OFF WHEN SYSTEM IS
OPERATING AND FLASHES
WHEN SYSTEM IS IN ERROR.
(DOES NOT INDICATE ERROR CODE)
OFF WHEN SYSTEM IS
OPERATING AND FLASHES
WHEN SYSTEM IS IN ERROR.
(DOES NOT INDICATE ERROR CODE)
Fig. 19— Indicator Lights
5 Flashes
Low Voltage
6 Flashes
High Voltage