Mocom Tethys H10, Operator'S Manual, Page: 76 / 86

76 OPERATOR'S MANUAL EN
TROUBLESHOOTING
ALARM CODES
The list of alarm codes, the relevant messages displayed and RESET modes, are indicated in
the following table:
ERRORS (CATEGORY A)
CODE MESSAGE ON THE
DISPLAY
DESCRIPTION EXIT
A025 DOOR LOCK PROBLEM
Micro-switch state inconsistent with
door state 3 (in cycle)
2 (stand-by)
A070
RESIN REGENERATION
PROBLEM Lack of water flow from brine to resins
during regeneration phase
3
A116 ADC ERROR Electronic system ADC error
3 (in cycle)
2 (stand-by)
A120
REFERENCE HEATING
ELEMENT FAULT Reference heating element acquisition
chain fault. 3 (in cycle)
2 (stand-by)
A121
REFERENCE HEATING
ELEMENT FAULT Reference heating element acquisition
chain fault. 3 (in cycle)
2 (stand-by)
A122
REFERENCE HEATING
ELEMENT FAULT Reference heating element acquisition
chain fault. 3 (in cycle)
2 (stand-by)
A123
REFERENCE HEATING
ELEMENT FAULT Reference heating element acquisition
chain fault. 3 (in cycle)
2 (stand-by)
A124
REFERENCE HEATING
ELEMENT FAULT Reference heating element acquisition
chain fault. 3 (in cycle)
2 (stand-by)
A125
REFERENCE HEATING
ELEMENT FAULT Reference heating element acquisition
chain fault. 3 (in cycle)
2 (stand-by)
A500 WATER FILLING PROBLEM
Water flow rate problem during water
filling
3
A501
WATER LEVEL ABOVE
MAX Water presence above the foreseen
maximum level.
3
A502 WATER FILLING SLOW
Water filling time over the maximum
limit.
3
A503 WATER FILLING FAST
Water filling time over the minimum
limit.
3
A504
AQUASTOP PROBLEM
"Aquastop" solenoid valve (EV3)
malfunction
3
A551 DRAIN PROBLEM Chamber emptying failed. 3
A552 TANK FULL PROBLEM
Presence of water in the chamber
when not required or level sensor fault.
1
A601 PT1 OPEN Temperature sensor PT1 failed.
3 (in cycle)
2 (stand-by)
A602 PT2 OPEN Temperature sensor PT2 failed.
3 (in cycle)
2 (stand-by)
A603 PT3 OPEN Temperature sensor PT3 failed
3 (in cycle)
2 (stand-by)
A606 MPX INTERRUPTED
Pressure sensor for detection of water
level in the chamber failed. 3 (in cycle)
2 (stand-by)
A611 PT1 SHORT-CIRCUITED
Temperature sensor PT1 short-
circuited. 3 (in cycle)
2 (stand-by)
A612 PT2 SHORT-CIRCUITED
Temperature sensor PT2 short-
circuited. 3 (in cycle)
2 (stand-by)
A613 PT3 SHORT-CIRCUITED
Temperature sensor PT3 short-
circuited 3 (in cycle)
2 (stand-by)
A616 MPX SHORT-CIRCUITED
Pressure sensor for detection of water
level short-circuited 3 (in cycle)
2 (stand-by)
A700
HEATING SYSTEM
PROBLEM
Lack of water heating in the
recirculation system or recirculation
pump failed.
3
A701 DRYING PROBLEM
The fan does not work properly or the
filter is clogged.
3
A702 MISSING HEPA FILTER It indicates the lack of HEPA filter. 3
A703 DRYING PROBLEM Drying heater malfunction 2