emmeti EQ 2021 Manual De Instalacion Y Uso página 63

8. OPERATING FAULTS
Error indicators
When there is a problem an error code is displayed.
If there is more than one anomoly press the
through the list. When the problems have been resolved, the unit will start
to function correctly again.
If the display LCD is in low energy mode (the display is not illuminated) and
there is a problem, the display will not illuminate. To illuminate the display
press any key once.
If no key is touched, after about 1 minute the display dims to save energy.
Operating faults
Terminal
Display
block
Accumulator temperature sensor (sen-
P01 AI02/GND
sor BTT)
Upper accumulator temperature sensor
P02 AI03/GND
(sensor TTT)
Air temperature sensor
P04 AI01/GND
(sensor AT)
Solar panel temperature sensors (sen-
P034 AI06/GND
sor STT).
Evaporator temperature sensor
P05 AI04/GND
(sensor CT)
Air outlet temperature sensor
P06 AI06/GND
(OT sensor)
Compressor suction temperature sen-
P07 AI05/GND
sor (SUT sensor)
E01 DI04/GND High pressure protection
E02 DI03/GND Input DI03/GND
E08 NET Communication with controller error
E9 - Anti-icing protection function
E10 1/2 (OUT5) Low air flow rate
OUT7/
E13 Shorted electronic anode
OUT8
OUT7/
E14 Open circuit electronic anode
OUT8
or keys to scroll
Malfunction
The BTT temperature sensor is broken
(open circuit or short circuit)
The TTT temperature sensor is broken
(open circuit or short circuit)
The AT temperature sensor is broken
(open circuit or short circuit)
The STT temperature sensor is broken
(open circuit or short circuit)
The CT temperature sensor is broken
(open circuit or short circuit)
The OT temperature sensor is broken
(open circuit or short circuit)
The SUT temperature sensor is faulty
(open or short circuit)
The high pressure switch has been
activated
The jumper is disconnected (the circuit
is open)
LCD display does not communicate cor-
rectly with electronic board
When BTT<10°C and AT<0°C, this
function activates and starts the heat
pump automatically.
Air duct pressure drop too high
Excessively conductive water, dama-
ged anode or grounded connection
cable between anode and circuit board
Empty water tank or interrupted con-
nection cable between anode and elec-
tronic board
Cause
Check and/or change the sensor
Check and/or change the sensor
Check and/or change the sensor
Check and/or change the sensor
Check and/or change the sensor
Check and/or change the sensor
Check and/or change the sensor
Check the high pressure switch and the
return circuit
Check the jumper (close the contact)
1. Check connection cable between
LCD display and circuit board.
2. Replace LCD display
3. Replace electronic board
When BTT>15°C or AT>1°C, this func-
tion will be deactivated automatically.
Verifies the sizing of the ducts and
possible obstructions in suction and
expulsion (cleaning of insect filters)
Check the quality of the water in the
tank and the electrical connections
Check the amount of water in the tank
and electrical connections
EN EN
Solution
63