04 - Abnormal Flow (Domestic Hot Water); 05 - Abnormal Flow (Heating/Sampling) - Daikin Altherma EBLQ011CAV3 Service Manual

8 Perform an electrical check of the water flow sensor. See
"2.25 Water flow sensor" on
Possible cause: Faulty water flow sensor.
9 Perform a check of the 3-way valve. See
page 35.
Possible cause: Faulty 3‑way valve.
10 Perform a check of the water pump. See
page 89.
Possible cause: Faulty water pump.
11 Perform a check of the hydro PCB. See
page 58.
Possible cause: Faulty hydro PCB.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.2 7H-04 – Abnormal flow (domestic hot
water)
Trigger Effect
Water flow Unit will stop
abnormality operating.
determined mainly
during domestic hot
water.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
NOTICE
Focus the troubleshooting on the domestic hot water
circuit.
1 Check that all stop valves of the water circuit are open. See
"3.3 Water circuit" on page 95.
Possible cause: Closed stop valve in the water circuit.
2 Perform a check of the air purge valves. See
circuit" on page 95.
Possible cause: Air in the water circuit.
3 Check the water flow. See "3.3 Water circuit" on
Possible cause: Water flow is too low.
4 Check the water pressure. See
Possible cause: Water pressure is too low.
5 Check the water volume. See
Possible cause: Water volume is too low.
6 Check if a by‑pass is installed in the water circuit. See
"3.3 Water circuit" on page 95.
Possible cause: No by‑pass installed in the water circuit.
7 Clean the water filter. See "4 Maintenance" on
Possible cause: Faulty or dirty water filter.
8 Perform an electrical check of the water flow sensor. See
"2.25 Water flow sensor" on
Possible cause: Faulty water flow sensor.
9 Perform a check of the 3-way valve. See
page 35.
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
page 87.
"2.1 3-way valve" on
"2.26 Water pump" on
"2.14 Hydro PCB" on
Reset
Manual reset via user
interface.
"3.3 Water
page 95.
"3.3 Water circuit" on page 95.
"3.3 Water circuit" on page 95.
page 99.
page 87.
"2.1 3-way valve" on
Possible cause: Faulty 3‑way valve.
10 Perform a check of the water pump. See
page 89.
Possible cause: Faulty water pump.
11 Perform a check of the hydro PCB. See
page 58.
Possible cause: Faulty hydro PCB.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.3 7H-05 – Abnormal flow (Heating/sampling)
Trigger Effect
Water flow Unit will stop
abnormality operating.
determined mainly
during space heating.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
NOTICE
Focus the troubleshooting on the space heating circuit.
1 Check that all stop valves of the water circuit are open. See
"3.3 Water circuit" on page 95.
Possible cause: Closed stop valve in the water circuit.
2 Perform a check of the air purge valves. See
circuit" on page 95.
Possible cause: Air in the water circuit.
3 Check the water flow. See "3.3 Water circuit" on
Possible cause: Water flow is too low.
4 Check the water pressure. See
Possible cause: Water pressure is too low.
5 Check the water volume. See
Possible cause: Water volume is too low.
6 Check if a by‑pass is installed in the water circuit. See
"3.3 Water circuit" on page 95.
Possible cause: No by‑pass installed in the water circuit.
7 Clean the water filter. See "4 Maintenance" on
Possible cause: Faulty or dirty water filter.
8 Perform an electrical check of the water flow sensor. See
"2.25 Water flow sensor" on
Possible cause: Faulty water flow sensor.
9 Perform a check of the 3-way valve. See
page 35.
Possible cause: Faulty 3‑way valve.
10 Perform a check of the water pump. See
page 89.
Possible cause: Faulty water pump.
11 Perform a check of the hydro PCB. See
page 58.
Possible cause: Faulty hydro PCB.
1 Troubleshooting
"2.26 Water pump" on
"2.14 Hydro PCB" on
Reset
Manual reset via user
interface.
"3.3 Water
page 95.
"3.3 Water circuit" on page 95.
"3.3 Water circuit" on page 95.
page 99.
page 87.
"2.1 3-way valve" on
"2.26 Water pump" on
"2.14 Hydro PCB" on
Service manual
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