Zehnder ComfoAir All models error codes
Codes
- P7Error codeReading and resetting malfunctions (and system information)
- P47Error codeCurrent value of T3 (= return air temperature)
- P48Error codeCurrent value of T4 (= exhaust air temperature)
- P52ParameterNote: In GUARANTEED PROTECTION MODE the frost-free element is switched on soonest; this level offers the best guarantee of balanced ventilation. Vice versa, in ECONOMY MODE the frost-free element switches on at the last possible moment; balanced ventilation is not guaranteed in this mode. When commissioning the ComfoAir, the frost-free programme can usually be left at level 2: NOMINAL MODE (factory setting). In areas with frequent cold spells in winter (fre- quent periods of -10°C or lower), level 1 should be selected: HIGH PROTECTION or even level 0: GUARANTEED PROTECTION
- P56Error codeNote: Setting the air volume in P56 (to “nL” or “HL”) is the starting point for programming the air specifi cations and setting the fans
- P59Error codeConfi rming the presence of an en- thalpy exchanger. • 0; Enthalpy exchanger fi tted • 1; Enthalpy exchanger with RH sensor. • 2; Enthalpy exchanger without RH sensor
- P60Error codeNote: If a valveless geothermal heat exchanger is fi tted, then the unregulated setting must be selected so that the ComfoAir's bypass valve continues to function prop- erly
- P70Error codeCurrent software version
- P71Error codeMost recent malfunction
- P72Error codeMalfunction before the most recent one
- P73Error codeMalfunction before the most recent two
- P74Error codeResetting a malfunction in the Com- foAir
- P76Error codeNote: Immediately after activating the self-test, the ComfoAir will run at maximum RPM. Immediately after activating the self-test, the bypass valve opens and closes. If the self-test is successful, the valve of the frost-free element opens and closes (if fi tted)
- P92Error codeComfoFond-L** valve open?
- S11Error codeSupply motor
- S22Error codeExhaust air pressure sensor
- S33Error codeSensor supply air
- SA1-3Error codeP23 Only applies to systems fitted with a SA 1-3V, SA 0-3V or SAI Flash switch
- T3Error codeL’appareil est en mode temporaire 3 - aucun code d’erreur