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TROUBLESHOOTING
Problem
Failure in electronic board
Low water temperature or
lack of hot water
Water is too hot and/ or
there is steam
Possible Causes
Power supply failure
Cable damaged or disconnect- ed
Low temperature programmed as
the set-point
Error activation
Cable damaged or disconnect- ed
Vacation mode ON
Equipment or compressor OFF
Use of large amount of hot water
Return of hot water into the cold
water
circuit
(safety
incorrectly installed or damaged)
ECO Mode selected and low
external temperature
Electric heater OFF
Problem with the probe
Problem with the safety thermostat Check error display on electronic board
Check the power supply
Check the corresponding circuit breaker
Check the integrity of the electronic board's
electric circuit
Adjust the temperature of the set-point. 53 °C
from factory
Check the presence of error on electronic
board and consult the table of errors
Check the connection of equipment to the plug
Check that the corresponding circuit-breaker is
connected
Check the integrity of the cables
Check that the electrical cable is disconnected
from the power board
Check electric protection (fuse)
Turn OFF the vacation mode
Check "5.4 Start up of the system"
Change the equipment to "BOOST" mode for a
fast water heating
Shut off the cold water supply valve to switch
off the safety device. Open a hot water tap.
Wait 10 minutes and if you get hot water,
device
replace the faulty plumbing and/or proceed
with the correct positioning of the safety
device
Change the equipment to "AUTO" mode to
initiate automatic management of system
Change the equipment to "BOOST" mode for a
fast water heating
Make sure the backup electric heater has
power supply
How to Proceed
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