Ariston 80 L Manual técnico - Página 33
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Error
Component
evaporator
fan
air sensor
H9
evaporator sensor
4-way valve
* LOW GAS CHECKING
If the circuit is empty the device will not function in heat pump, and the H3 error will always occur (see chapter
Troubleshooting).
If the circuit hasn't the right gas quantity (due to leakages), the performance decreases; depending on the entity of the leakage,
H3 error could occur.
To check if the quantity is correct, verify that the water temperature is lower than T
ensure that is working only with heat pump).
T
: Water temperature, press and release the knob and read it on the display.
H
O
2
T
: Gas temperature, read it with a temperature sensor on the copper pipe close to the 3/8'' gas connection on the external
GAS
unit.
After 10 ÷ 15 minutes of working verify the following conditions:
With T
about 20 °C, the T
•
H
O
2
With T
about 30 °C, the T
•
H
O
2
With T
about 50 °C, the T
•
H
O
2
Fault cause
Fault mode
due to ice, leafs, dirt → clogged
fan capacitor/motor broken → break
damaged wirings → not working
bad connection of wirings → not working
physical impediments to the movement of
fan blades → not working
blades broken
faulty component → out of tune
incorrect positioning
faulty component → out of tune
incorrect positioning
faulty component → break
damaged wirings → not working
bad connection of wirings → not working
incorrect positioning
has to be less than 70 °C
GAS
has to be less than 80 °C
GAS
has to be less than 90 ÷ 95 °C
GAS
What to check
Visual check of the component
Check the functionality after a
•
temporary ON/OFF power
disconnection
Verify that the resistance between
•
terminals is between 200-500 Ω
Verify that the resistance between
•
the terminals and the ground
connection of the terminal block is
more than 1 MΩ
Visual check of the component
Check the correct connection with the
mainboard
Visual check of the component
Verify with a tester that the resistance
between terminals is compliant with
the "SENSOR TEST TABLE"
Verify the proper positioning
Verify with a tester that the resistance
between terminals is compliant with
the "SENSOR TEST TABLE"
Verify the proper positioning
Check the functionality after a
•
temporary ON/OFF power
disconnection
Verify that the resistance between
•
terminals is not zero or infinite
Verify that the resistance between
•
the terminals and the ground
connection of the terminal block is
infinitive
Visual check of the component
Check the correct connection with the
mainboard
Verify the proper positioning
then start the heating in GREEN mode (to
HP
33
What to do
Clean the component
If the component is faulty, replace it
If the component is faulty, replace it
Place the component in the right
position
Clean the component
If the component is faulty, replace it
If the component is faulty, replace it
Place the component in the right
position
If the component is faulty, replace it
Place the component in the right
position
If the component is faulty, replace it
If the component is faulty, replace it
Place the component in the right
position
Place the component in the right
position