Category
HVAC
HVAC codes with evidence-led diagnosis.
172 published entries
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Published error entries
ECMidea air conditioner error EC: refrigerant leak detectionHigh· MideaEH03Midea air conditioner error EH03: indoor fan speed faultHigh· MideaEL0CMidea EL0C on an air conditioner: refrigerant leak warningHigh· MideaPC01Midea air conditioner error PC01: high or low voltage faultHigh· MideaP8Mitsubishi Electric P8 on an air conditioner: pipe temperature out of rangeHigh· Mitsubishi ElectricLED-NARANJA-2-PITIDOSNetatmo orange light and two beeps on CO alarm: end of lifeHigh· NetatmoE108Palazzetti E108 on pellet stove: pressure or thermal safetyHigh· PalazzettiF91Panasonic F91 on an air conditioner: refrigeration cycle abnormalityHigh· PanasonicE1Piazzetta E1 on pellet stove: flue pressure switch alarmHigh· PiazzettaECSamsung EC on an air conditioner: gas leak or sensor faultHigh· Samsung25Toshiba 25 on an air conditioner: refrigerant leak detectedHigh· Toshiba2-PITIDOS-CADA-40-SX-Sense XS03 two beeps every 40 s on smoke alarm: malfunctionHigh· X-SenseE1Carrier E1 on split air conditioner: unit communication errorMedium· CarrierECCarrier EC on split air conditioner: refrigerant leak alertMedium· CarrierE1Cecotec ForceClima E1 code: tube or condenser sensor faultMedium· CecotecH9Daikin H9 on an air conditioner: outdoor air thermistor faultMedium· DaikinJ3Daikin J3 on an air conditioner: discharge pipe thermistor faultMedium· DaikinJ6Daikin J6 on an air conditioner: outdoor exchanger sensor faultMedium· DaikinUADaikin UA on an air conditioner: indoor and outdoor unit mismatchMedium· DaikinE0Daitsu E0 on an air conditioner: indoor and outdoor communicationMedium· DaitsuE1Daitsu E1 on an air conditioner: indoor ambient temperature sensorMedium· DaitsuPFDe'Longhi Pinguino PF code: probe failure on the displayMedium· De'LonghiA21Edilkamin A21 pellet stove: switch-off due to power failureMedium· EdilkaminNo IgnitionExtraflame No Ignition on pellet stove: ignition failureMedium· Extraflame11Fujitsu 11 on an air conditioner: serial communication errorMedium· Fujitsu41Fujitsu 41 on an air conditioner: room temperature sensor open or shortedMedium· Fujitsu42Fujitsu 42 on an air conditioner: indoor heat exchanger sensorMedium· Fujitsu51Fujitsu 51 on an air conditioner: indoor fan motor faultMedium· Fujitsu94Fujitsu 94 on an air conditioner: compressor overcurrent stopMedium· Fujitsu97Fujitsu 97 on an air conditioner: outdoor unit fan motor errorMedium· FujitsuE1Google Nest E1 on smart thermostat: C wire requiredMedium· Google NestE10Google Nest E10 on smart thermostat: no Y1 power in cold weatherMedium· Google NestE195Google Nest E195 on smart thermostat: no power to R wireMedium· Google NestE2Google Nest E2 on smart thermostat: no power wires detectedMedium· Google NestE298Google Nest E298 on smart thermostat: no system powerMedium· Google NestE5Google Nest E5 on smart thermostat: no heating or cooling detectedMedium· Google NestE73Google Nest E73 on smart thermostat: no power to Rc wireMedium· Google NestE74Google Nest E74 on smart thermostat: no power to Rh wireMedium· Google NestE9Google Nest E9 on smart thermostat: no power to C wireMedium· Google NestH71Google Nest H71 on smart thermostat: no connection to Heat LinkMedium· Google NestH72Google Nest H72 on smart thermostat: thermostat lost powerMedium· Google NestH73Google Nest H73 on smart thermostat: OpenTherm not detectedMedium· Google NestPILAS-BAJASNest Protect low battery chirp on smoke and CO alarmMedium· Google NestE5Gree E5 on an air conditioner: overcurrent protectionMedium· GreeE6Gree E6 on an air conditioner: indoor and outdoor communication faultMedium· GreeE8Gree E8 on an air conditioner: high temperature protectionMedium· GreeF1Gree F1 on an air conditioner: indoor ambient sensor faultMedium· GreeF2Gree F2 on an air conditioner: indoor evaporator sensor faultMedium· Gree