aldes T.Flow Hygro+ - Without Error Code

62
Code
displayed
Message
displayed
Causes
Consequences on the water heater
operation
Er12
TANK <>
EMPTY
Abnormally rapid rise in T° on the
tank bottom water sensor or tank
top = empty tank.
Water not heating: stop heat pump and electrical boost.
Fan in operation (CMEV) for version
FAN_T.FLOW HYGRO+ / B100-FAN_T.FLOW NANO
(with built-in fan).
Er13
SAFETY <>
T°HP
Refrigerating line temperature at
compressor outlet (HP) too high.
Stop the heat pump and heat the water with electrical
boost only (SAFE mode).
Fan in operation (CMEV) for version
B200-FAN_T.FLOW HYGRO+ / B100-FAN_T.FLOW
NANO
(with built-in fan).
Er14
ERROR <>
COMP
Compressor out of order.
Er15
SAFETY <>
COMP <>
STOP
Compressor stopped following
overload safety activated by the
inverter module.
Er16
FAILUR <>
START <>
COMP
Compressor start-up failure (inverter
module).
Er17
UNDER <>
SPEED <>
COMP
Compressor stopped following
sub-speed detected by the inverter
module.
Er18
SHORT <>
CUT <>
COMP
Compressor short-circuited.
Er19
DETECT <>
OPH
Peak/off-peak signal detection in
permanent state at off-peak times.
Water heated with heat pump and electrical top-up but
dual tariff is not active.
Er20
ERROR <>
LCD
Communication with LCD screen
defective.
No impact on operation.
Er21
LOW <>
AIR <>
FLOW
Extract airflow too low (evaporator
temperature abnormally and
regularly low)
Stop the heat pump and heat the water with electrical
boost only (SAFE mode).
Fan in operation (CMEV) for version B200-FAN_T.FLOW
HYGRO+ / B100-FAN_T.FLOW NANO (with built-in fan).
Er22
SAFETY <>
T°TOP
Tank top temperature sensor
abnormally high (heat pump
running)
Er23
TANK
SENSOR
INVERT
Top and bottom temperature
sensors reversed
Water heated with heat pump only - electrical boost
prohibited
Fan in operation (CMEV) for version
B200-FAN_T.FLOW HYGRO + (with built-in fan)
Er24
EVAP <>
LOW <>
POWER
Heat pump production level
abnormally low.
Stop the heat pump and heat the water with electrical
boost only (SAFE mode).
Fan in operation (CMEV) for version B200-FAN_T.FLOW
HYGRO+ / B100-FAN_T.FLOW NANO (with built-in fan).
The only way to restart the tank when there is an error is to cut off the tank's power supply for a short
instant. You are advised to contact the maintenance company if the problem recurs.
9.2. Without error code
Some malfunctions do not generate an error code. Think to verify the following point:
• Electrical heating element: should the safety thermostat on the electrical heating element cut out, reset it
manually by pressing the red button on the front of the thermostat.