When your Ferroli air conditioner starts acting up, it might be trying to communicate something important through its error codes. These codes are a form of self-diagnosis that modern appliances use to inform users and technicians about the type of problem they are experiencing. Understanding what each code means can be key to solving minor issues on your own or knowing when it’s time to call in a professional.
Before we dive into the error code table, it’s important to understand some basic concepts. For instance, when we talk about a “probe,” we’re referring to a sensor that measures different types of conditions, such as temperature. The term “PCB card” refers to the printed circuit board that controls the functions of the air conditioner. Knowing these terms will help you better understand the proposed solutions for each error code.
Below, you’ll find a complete table with the most common error codes for Ferroli air conditioners, along with a description of each problem and suggested solutions. Remember, even though some solutions seem straightforward, always proceed with caution and prioritize safety. If you’re not comfortable performing any of the suggested actions, it’s better to contact a qualified technician.
| Error | Description | Solution |
|---|---|---|
| E0 | Flow detector error (E8 displayed 3 times) | “1. Examine the flow detector wiring. 2. The water flow is too low. 3. The flow detector is faulty.” |
| E1 | Phase sequence error (only for three-phase devices) | “1. Examine the power wiring. 2. Check the connection sequence of the power cables.” |
| E2 | Communication error between the remote controller and the device | “1. Connect the connection cable. 2. Check the connection sequence of the cables. 3. Include protection against electromagnetic disturbances.” |
| E3 | T1 probe reading error | “1. Reconnect the probe connector. 2. Dry and protect the connection. 3. Replace the probe.” |
| E4 | T5 probe reading error | “1. Reconnect the probe connector. 2. Dry and protect the connection. 3. Replace the probe.” |
| E5 | T3 probe reading error | “1. Reconnect the probe connector. 2. Dry and protect the connection. 3. Replace the probe.” |
| E6 | T4 probe reading error | “1. Reconnect the probe connector. 2. Dry and protect the connection. 3. Replace the probe.” |
| E8 | Flow detector error | “Check valves, water filter, water system, water pressure, pump speed, expansion vessel, hydraulic circuit load losses, electric booster, fuses.” |
| E9 | Th probe reading error | “1. Reconnect the probe connector. 2. Dry and protect the connection. 3. Replace the probe.” |
| H0 | Communication error between PCB B card and the hydro module control card | “1. Examine the wiring. 2. Check the connection sequence of the cables. 3. Include protection against electromagnetic disturbances.” |
| H1 | Communication error between PCB A card and PCB B card | “1. Check the power supply to the cards. 2. Examine the connection cable. 3. Reconnect the cable or replace it. 4. Replace the cards.” |
| H2 | T2 probe reading error | “1. Reconnect the probe connector. 2. Dry and protect the connection. 3. Replace the probe.” |
| H3 | T2B probe reading error | “1. Reconnect the probe connector. 2. Dry and protect the connection. 3. Replace the probe.” |
| H4 | If error P6 is activated 3 times | Consult error P6. |
| H5 | Ta probe reading error | “Ta is the air temperature probe inside the remote controller. Replace the probe or the remote controller.” |
| H6 | CC fan failure | “1. Change the installation position or create a wind barrier. 2. Replace the fan motor.” |
| H7 | Power supply voltage too low or too high | “1. Check the power supply voltage. 2. Activate and deactivate the power supply. 3. Replace the main control card.” |
| H8 | Pe pressure transducer error | “1. Check the transducer’s connection to the card. 2. Replace the transducer.” |
| H9 | T1B probe reading error | “1. Reconnect the probe connector. 2. Dry and protect the connection. 3. Replace the probe.” |
| HA | TW_out probe reading error | “1. Reconnect the probe connector. 2. Dry and protect the connection. 3. Replace the probe.” |
| HE | With the device in HEAT mode, the refrigerant temperature leaving the condenser is too high | “The outdoor air temperature is too high. Do not use the device in HEAT mode if the outdoor air temperature exceeds 35 °C.” |
| HF | EEprom operation error on PCB B card | “1. Rewrite the data in the EEprom. 2. Replace the EEprom. 3. Replace the PCB B card.” |
| HH | H6 displayed 10 times in 2 hours | Consult error H6. |
| P0 | Low pressure protection | “Replenish refrigerant, remove protection panels, clean battery, unlock expansion valve, increase pump speed, adjust refrigerant charge.” |
| P1 | High pressure protection | “Check water flow, fill water installation, adjust refrigerant charge, unlock expansion valve, remove external objects, clean battery.” |
| P3 | Compressor protection against overcurrent | “The same as error code P1. Check the power supply voltage.” |
| P4 | Protection against high temperatures due to lack of refrigerant | “The same as error code P1. Replenish refrigerant, correctly connect probes.” |
| P5 | Protection against the large temperature difference between the water inlet and outlet of the plate heat exchanger | “Check valves, water filter, water system, water pressure, pump speed, expansion vessel, hydraulic circuit load losses.” |
| P6 | Compressor protection module | “Check power supply voltage, space between devices, clean battery, check fan, adjust refrigerant charge, increase pump speed, connect or replace T1 probe, apply conductive paste, examine wiring, replace driver card or compressor.” |
| PP | The water inlet temperature is higher than the water outlet temperature of the heated water | “1. Reconnect the probe connectors. 2. Replace the probe. 3. Reset the device or replace the control coil or valve.” |
| Pb | Antifreeze protection | “After the antifreeze protection phase, the device will automatically resume normal operation.” |
| Pd | Protection against excessive refrigerant temperature at the condenser outlet | “1. Remove protection panels. 2. Clean battery. 3. Ensure adequate space around the device. 4. Replace the fan motor.” |
Our advice
Before attempting any repairs on your own, make sure to disconnect the air conditioner from the power source to avoid electrical hazards. If the problem persists after following the suggested solutions, it’s advisable to contact a specialized technical service. Remember, prevention through regular maintenance can help avoid many of these errors.
Error codes in Ferroli air conditioning
Troubleshoot error code “Pd” in Ferroli air-conditioning
Troubleshoot error code “Pb” in Ferroli air-conditioning
