Clivet · A niche brand in the UK. 55 codes across 2 product families, each taken from the manufacturer’s manuals.
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Type the code on your display or a word from its meaning. Each code opens its own page with what it means, whether it is safe and what you can check.
55 codes
| Code | Meaning | Stops? | Homeowner check? |
|---|---|---|---|
| bH | PED board error | Not stated | Yes |
| C0 | Multiple units configured as master in the network (printed 'CO') | Not stated | Yes |
| C7 | Transducer module temperature too high | Not stated | Yes |
| E0 | Flow switch error | Not stated | Yes |
| E1 | Phase sequence error (three-phase units) | Not stated | Yes |
| E2 | Communication error between user interface and control board | Not stated | Yes |
| E3 | T1 sensor error (backup heater outlet water) | Not stated | Yes |
| E4 | T5 sensor error (DHW temperature) | Not stated | Yes |
| E5 | T3 sensor error (finned coil outlet) | Not stated | Yes |
| E6 | T4 sensor error (outdoor ambient temperature, as transcribed 'room temperature') | Not stated | Yes |
| E7 | Tbt1 sensor error | Not stated | Yes |
| E8 | Water flow-rate error | Not stated | Yes |
| E9 | Th suction pipe sensor error | Not stated | Yes |
| EA | Tp discharge temperature sensor error | Not stated | Yes |
| Eb | Tsolar solar panel sensor error | Not stated | Yes |
| Ec | Additional DHW storage temperature sensor (Tbt2) error | Not stated | Yes |
| Ed | Tw_in entering water temperature sensor error | Not stated | Yes |
| EE | Control board EEPROM failure | Not stated | Yes |
| F1 | DC generatrix voltage too low | Not stated | Yes |
| H0 | Communication error main PCB - inverter module (as transcribed) | Not stated | Yes |
| H1 | Communication error main PCB - hydraulic module (as transcribed) | Not stated | Yes |
| H2 | Plate heat exchanger T2 sensor error | Not stated | Yes |
| H3 | Plate heat exchanger T2B sensor error | Not stated | Yes |
| H4 | Three P6 protection activations | Not stated | Yes |
| H5 | Internal (room) temperature sensor Ta error | Not stated | Yes |
| H6 | DC fan malfunction | Not stated | Yes |
| H7 | Main circuit voltage fault | Not stated | Yes |
| H8 | Pressure sensor error | Not stated | Yes |
| H9 | Tw2 sensor error | Not stated | Yes |
| HA | Water outlet temperature sensor (Tw_out) error | Not stated | Yes |
| Hb | PP protection trips 3 times with water temperature below 7 C | Not stated | Yes |
| Hd | Master-slave communication error | Not stated | Yes |
| HE | Main board - thermostat (transfer board) communication error | Not stated | Yes |
| HF | Inverter EEPROM error | Not stated | Yes |
| HH | H6 displayed 10 times in 2 hours | Not stated | Yes |
| HL | PFC module fault | Not stated | Yes |
| HP | Low pressure protection tripped 3 times in an hour | Not stated | Yes |
| L0 | Compressor inverter module fault | Not stated | Yes |
| L1 | Low voltage DC bus protection of inverter module | Not stated | Yes |
| L2 | High voltage DC bus protection of inverter module | Not stated | Yes |
| L4 | MCE protection | Not stated | Yes |
| L5 | Speed 0 protection | Not stated | Yes |
| L7 | Phase sequence error | Not stated | Yes |
| L8 | Compressor frequency variation greater than 15 Hz in 1 s | Not stated | Yes |
| L9 | Compressor frequency difference to target greater than 15 Hz | Not stated | Yes |
| P0 | Low pressure protection | Not stated | Yes |
| P1 | High pressure protection | Not stated | Yes |
| P3 | Compressor overcurrent protection | Not stated | Yes |
| P4 | High discharge temperature protection | Not stated | Yes |
| P5 | High temperature difference protection (plate heat exchanger) | Not stated | Yes |
| P6 | Module protection | Not stated | Yes |
| P9 | Fan protection | Not stated | Yes |
| Pb | Antifreeze protection | Not stated | Yes |
| Pd | High refrigerant outlet temperature of finned coil in cooling mode | Not stated | Yes |
| PP | Inlet water temperature higher than outlet water temperature in heating mode | Not stated | Yes |