61
R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
2. MAINTENANCE
SUPPOR
T CENTER
CODE
FAULT
POSSIBLE CAUSE
SOLUTION
RESET
E02
WATER TEMP. HIGHT
LIMIT SWITCH
THERMOSTAT CABLE
DISCONNECTED;
CHECK THE WIRING:
MANUAL
RESET
(PRESS THE RESET
‘
’ KEY).
BROKEN HIGH LIMIT.
REPLACE IT.
E03
EXHAUST SAFETY HIGH
LIMIT SWITCH
HIGH LIMIT BROKEN;
REPLACE IT;
MANUAL
RESET
(PRESS THE RESET
‘
’ KEY).
HIGH LIMIT CABLE
DISCONNECTED.
CHECK THE WIRING.
E04
LOW WATER CUTOFF
INSUFFICIENT WATER
PRESSURE INSIDE THE SYSTEM
[LOWER THAN 4.3 psi (0.3 bar)]
LOAD THE SYSTEM;
AUTOMATIC.
WATER PRESSURE SWITCH
CABLE DISCONNECTED;
CHECK THE WIRING;
WATER PRESSURE SWITCH
BROKEN.
REPLACE IT.
E05
DOMESTIC INLET
TEMPERATURE
BROKEN OR INCORRECTLY
CALIBRATED PROBE
(RESISTANCE VALUE 10
KOHM AT 77°F (25 °C) NTC);
REPLACE IT;
AUTOMATIC.
DISCONNECTED OR WET
PROBE CONNECTOR.
CHECK THE WIRING.
E06
DOMESTIC INLET
TEMPERATURE PROBE
BROKEN OR INCORRECTLY
CALIBRATED PROBE
(RESISTANCE VALUE 10
KOHM AT 77°F (25 °C) NTC);
REPLACE IT;
AUTOMATIC.
DISCONNECTED OR WET
PROBE CONNECTOR.
CHECK THE WIRING.
E15
RETURN PROBE
BROKEN OR INCORRECTLY
CALIBRATED PROBE
(RESISTANCE VALUE 10
KOHM AT 77°F (25 °C) NTC);
REPLACE IT;
AUTOMATIC.
DISCONNECTED OR WET
PROBE CONNECTOR.
CHECK THE WIRING.
