Cody the heat pump troubleshooting assistantERROR CODESHEAT PUMP
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List of error codes for the Saunier Duval Genia Air 5 air-to-water heat pump

List of error codes for the Saunier Duval Genia Air 5 air-to-water heat pump

Download the manual for the Saunier Duval Genia Air 5 air-to-water heat pump

 

 

The temperature difference between the flow and return of the heat pump circuit is too high (>15K).

Non-blocking fault.

 

23

There is a faulty reading

of the circuit temperature. Check the connections of the return and flow temperature sensors on the heat exchanger

The electronic board is not working. plate exchanger.

Check that the sensor’s position and operation are correct.

Add thermal paste. Check the sensor’s resistance.

 

There is an incorrect water flow reading.

The fan speed is too low (<300 rpm).

Blocking fault if it occurs more than 3 times in the last 10 startups.

 

37

 

The fan speed is too low.

Check the fan connections. Check the fuses on the main board. Replace the electronic board.

Check for obstructions in front of the fan grille.

Replace the fan motor.

Temperature sensor fault.

Compressor suction temperature sensor fault.

 

514

 

The sensor is faulty or poorly connected to the board.

 

Check the sensor connection. Check the sensor position. Check the sensor’s resistance.

Compressor discharge temperature sensor fault. 517
Heat pump circuit return temperature sensor fault.  

519

Flow temperature sensor fault. 520
Evaporator/condenser sensor fault. 526
Plate exchanger sensor fault. 528
 

Poor flow in the heat pump circuit after pre-sweep of the heat pump circuit pump

(D < 500 l/h).

 

24

Heat pump circuit flow is too low. Force the pump and check the flow. Adjust the flow.
Heat pump flow is too high. Force the pump and check the flow.
Faulty circulator pump. Check the circulator pump, its power supply, and the water flow when the circulator pump is off.
Lack of water. Check the heat pump circuit (leaks) and the valve.
Heat pump filter missing or clogged. Install a sludge filter. Clean the sludge filter.
Poor circuit degassing. Activate the degassing function.
Faulty expansion tank. Check the expansion tank pressure. Re-pressurize or replace it.
Heat pump circuit return temperature too high

(>42°C in heating mode and >34°C in cooling mode).

 

26

Heat pump temperature too high. Check:

– sensor connections.

– sensor position and operation.

Faulty temperature reading.
Waiting after pre-sweep for a return temperature

(<42°C in heating mode and

<34°C in cooling mode).

 

39

 

Incorrect water flow reading.

 

Force the pump and check the flow.

Heat pump air temperature out of range (between -7 and 25°C in heating mode, and between 18 and 48°C in cooling mode).  

32

The air temperature is too low or too high. Check the outdoor temperature. Relocate the heat pump.
 

Faulty temperature reading.

Check:

– sensor connections.

– sensor position and operation.