Riello Array AR 1500 - Page 46

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SHUTDOWN
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APPENDIX
APPENDIX
Error no. Error Description Checks Solutions
119 RETURN_OPEN Return sensor open
a- Check the integrity of the
wire connections;
b- Check the return tem-
perature sensor.
a- If the wiring is damaged,
replace it;
b- Verify that the tempera-
ture sensor has the correct
resistance values. If values
are incorrect sensor must be
replaced.
120 SUPPLY_OPEN Supply sensor open
a- Check the integrity of the
wire connections;
b- Check the supply tem-
perature sensor.
a- If the wiring is damaged,
replace it;
b- Verify that the tempera-
ture sensor has the correct
resistance values. If values
are incorrect sensor must be
replaced.
121 SUPPLY2_OPEN Supply2 sensor open
122 DHW_OPEN DHW sensor open
a- Check the integrity of the
wire connections;
b- Check the DHW tempera-
ture sensor.
a- If the wiring is damaged,
replace it;
b- Verify that the tempera-
ture sensor has the correct
resistance values. If values
are incorrect sensor must be
replaced.
123 FLUE_OPEN Flue sensor open
124 FLUE2_OPEN Flue2 sensor open
125 OUTDOOR_OPEN Outdoor sensor open
a- Check the integrity of the
wire connections;
b- Check the Outdoor tem-
perature sensor.
a- If the wiring is damaged,
replace it;
b- Verify that the tempera-
ture sensor has the correct
resistance values. If values
are incorrect sensor must be
replaced.
126 RETURN_SHORTED Return sensor shorted
a- Check the integrity of the
wire connections;
b- Check the return tem-
perature sensor.
a- If the wiring is damaged,
replace it;
b- Verify that the tempera-
ture sensor has the correct
resistance values. If values
are incorrect sensor must be
replaced.
127 SUPPLY_SHORTED Supply sensor shorted
a- Check the integrity of the
wire connections;
b- Check the supply tem-
perature sensor.
a- If the wiring is damaged,
replace it;
b- Verify that the tempera-
ture sensor has the correct
resistance values. If values
are incorrect sensor must be
replaced.
128 SUPPLY2_SHORTED Supply2 sensor shorted
129 DHW_SHORTED DHW sensor shorted
a- Check the integrity of the
wire connections;
b- Check the DHW tempera-
ture sensor.
a- If the wiring is damaged,
replace it;
b- Verify that the tempera-
ture sensor has the correct
resistance values. If values
are incorrect sensor must be
replaced.
130 FLUE_SHORTED Flue sensor shorted
131 FLUE2_SHORTED Flue2 sensor shorted
132 OUTDOOR_SHORTED Outdoor sensor shorted
a- Check the integrity of the
wire connections;
b- Check the Outdoor tem-
perature sensor.
a- If the wiring is damaged,
replace it;
b- Verify that the tempera-
ture sensor has the correct
resistance values. If values
are incorrect sensor must be
replaced.