The Daikin E2 error code usually points to a defect in the indoor thermistor or its wiring. Cleaning it might solve the problem. But if it’s truly damaged, a replacement initially priced at $150 (depending which aircon model you are using) is necessary to get your aircon back up and running smoothly again.
If you are seeing an E2 error code on your Daikin unit, that most likely means there is an issue with the room temperature sensor (or thermistor) of your air conditioning unit. A faulty wiring connection or sensor may simply result from the presence of debris or a physical obstruction. The latter is something which you can immediately address because a dirty or corroded sensor head is instantly visible and obvious.
Your Daikin unit comes with a remote in which you can read the error code so you can get started diagnosing and troubleshooting the problem. Check first if the setting is set to controlling the indoor component of the aircon. For at least five seconds, press the timer cancel button. You will hear a long beep after which you will notice that the temperature display is now showing E2 as part of the Daikin error code display.
You can find the room temperature sensor of your Daikin unit attached to a black wire that is normally mounted on the evaporator coils. If it is dirty, clean it gently. Use a dry soft-bristled brush to remove dirt and dust. Doing this usually resolves the issue right away. But if you still get the E2 error code on the Daikin remote display, you might want to consider consulting with a Silverback Aircon professional over WhatsApp as soon as you are able.
An E2 error code, one that has been ultimately narrowed down to be caused by a defective room temperature sensor, is not a minor technical issue. The most likely consequence of a faulty room temperature sensor, if ignored and left unchecked for a long time, is an increase in your electric bill from all the temperature read-out irregularities that lead to a constantly running air conditioning unit. The sensor ensures that your air conditioning unit is running within a safe temperature range. It is also inextricably tied to the energy-efficiency functionality and capabilities of your Daikin aircon, and you want it to be in tiptop shape and producing accurate readings at all times.
Getting a Daikin E2 error rarely happens. If the issue persists after you’ve cleared visible gunk or cobwebs from the room temperature sensor’s delicate copper head, consider reaching out to a Silverback Aircon specialist via WhatsApp. We can provide a quote for either repairing or replacing the damaged sensor.
Silverback Aircon has refurbished parts specifically for Daikin models readily available. We have extensive experience with installation, repair, and replacement of Daikin air conditioners. Depending on the sensor or thermistor type, which we can identify during consultation, the replacement cost typically ranges from $150 to $250.
Silverback Aircon specializes in residential installation, maintenance, and repair of Daikin air conditioning units. We also do free consultation over WhatsApp, including diagnosing rare scenarios such as a Daikin E2 error that resists routine troubleshooting and gentle cleaning of the sensitive copper sensor head. And if your Daikin unit’s room temperature sensor ends up needing a replacement anytime soon, know that we already have on hand a well-maintained inventory of refurbished Daikin model parts.
During the WhatsApp consultation, we will ask for the following information: the model number of the Daikin indoor unit (found on the right-hand side of the fan coil) and the model number of the outdoor condenser unit (printed on the invoice). Please be ready with this important set of information so we can speed things along and quickly assist you. For other Daikin aircon error codes and their corresponding fixes, refer to our “Daikin Error Codes and How Much It Costs To Fix” comprehensive guide.
