Home › Error codes by brand
Heat pump error codes by brand
Choose your appliance’s brand: each page lists the error codes, their meaning, the checks you can do yourself, and when it’s time to call a technician.
Ask Cody ›He knows your code, even if your brand isn’t listed.
Most searched brands
The manufacturers whose codes come up most often with our readers.
DaikinMeaning, causes and solutions · manufacturer manualsView codes ›AtlanticMeaning, causes and solutions · manufacturer manualsView codes ›Saunier DuvalMeaning, causes and solutions · manufacturer manualsView codes ›ChaffoteauxMeaning, causes and solutions · manufacturer manualsView codes ›De DietrichMeaning, causes and solutions · manufacturer manualsView codes ›Mitsubishi ElectricMeaning, causes and solutions · manufacturer manualsView codes ›PanasonicMeaning, causes and solutions · manufacturer manualsView codes ›LGMeaning, causes and solutions · manufacturer manualsView codes ›
All brands from A to Z
Air-to-water heat pumps, reversible air conditioners (mini-splits), and heat pump water heaters.
AirwellMeaning, causes and solutionsView codes ›AristonMeaning, causes and solutionsView codes ›AuerMeaning, causes and solutions · manufacturer manualsView codes ›BoschMeaning, causes and solutionsView codes ›CarrierMeaning, causes and solutionsView codes ›FujitsuMeaning, causes and solutionsView codes ›Glow-wormMeaning, causes and solutionsView codes ›GreeMeaning, causes and solutionsView codes ›HeiwaMeaning, causes and solutionsView codes ›HitachiMeaning, causes and solutionsView codes ›MideaMeaning, causes and solutionsView codes ›Mitsubishi HeavyMeaning, causes and solutionsView codes ›SamsungMeaning, causes and solutionsView codes ›Stiebel EltronMeaning, causes and solutionsView codes ›TechnibelMeaning, causes and solutionsView codes ›ThermorMeaning, causes and solutionsView codes ›ToshibaMeaning, causes and solutionsView codes ›VaillantMeaning, causes and solutionsView codes ›ViessmannMeaning, causes and solutionsView codes ›
Your brand isn’t listed yet. Describe the code to Cody, he’ll look it up in the manufacturer’s documentation.
Do you know the exact model of your appliance?
Check directly the official list of error codes for your model, taken from the manufacturer’s manual.
How do I read an error code?
An error code indicates that a safety feature has been triggered: a pressure, temperature, or flow reading is outside normal values and the appliance protects itself. The same code doesn’t mean the same thing from one brand to another, and sometimes from one range to another within the same manufacturer: “E7” doesn’t mean the same thing for Daikin as it does for Atlantic. That’s why the codes are sorted by brand.
Write down the code exactly as it appears (letters, numbers, period or dash included), note whether it shows up on the indoor unit, the remote control, or the outdoor unit, then open your brand’s page. Can’t find your code there? Ask Cody, he’ll search for it for you.
Is your heat pump shut down?
No more heating, a code that keeps coming back: find a qualified professional near you, with a no-obligation quote.
Frequently asked questions
My brand isn’t on the list, what should I do?Many appliances are made by a different manufacturer than the one on the logo: an Atlantic or Thermor heat pump may use electronics from a Japanese manufacturer. Give Cody the code and the brand, and he’ll find the right match.
The code disappears when I cut the power, does that mean it’s fixed?No, a power cut clears the display, not the cause. If the code comes back, the fault is real. Note how often it appears: that’s the most useful information for the technician.
Can I fix it myself?Yes, for simple checks: breaker, filters, water pressure, the area around the outdoor unit. Anything involving the refrigerant circuit must be left to a professional holding the required certification.