When the E4 error code appears on the display of your York air conditioner, it typically means an abnormality is detected in the indoor temperature sensor or thermistor. The causes are varied. There could be an underlying defect in the indoor thermistor, there’s trouble in the wiring, or there’s a malfunction in the indoor PCB terminal where the sensor and the associated wiring are connected. Or, a major aircon maintenance issue is behind the faulty indoor temperature sensor–especially if you haven’t been heeding the recommended aircon maintenance tips from the Housing & Development Board of Singapore. Troubleshooting, hopefully, will end up clearing the E4 error on your York aircon.
Since the York aircon E4 error code points to the indoor unit as the likeliest source of the fault, then your troubleshooting should be focused on the indoor fan coil unit. Turn off the air conditioner, disconnect it from the power source, and open the AC cover. Clean the aircon vane, air filter, and all the parts that you can access, most especially the indoor thermistor and the indoor PCB terminal. Check the wiring system for any loose jacks and the sensor head for signs of corrosion. Once you’ve ensured that everything is clear, replace the AC cover and plug the York air conditioner back in. Turn it on and check the display. If the E4 error code is still there, then it’s time to get help from an HVAC professional.
Silverback Aircon not only offers professional aircon servicing options for your York air conditioning unit, which is a reliable, durable, economical, and energy-efficient brand whose most common issues tend to mostly involve minor, cheap-to-repair troubles such as swing flap problems. We also have a ready stock of refurbished York aircon spare parts on hand in case the E4 fault on your air conditioner is due to a defective indoor thermistor or indoor PCB. The table below shows the estimated cost of replacing the failing parts.
The following table itemizes the prices of Silverback Aircon’s various aircon servicing options, which might be needed to completely clear the E4 error from your York air conditioning unit. Silverback Aircon’s servicing includes cleaning of the AC cover, washing of the aircon filter, removal of drainage pan choke, vacuum cleaning of the evaporator coil, and reinstallation of the aircon’s back cover. There is also a gas leak check involved, if applicable to your situation.
And for a completely error-free York air conditioner, you can also book a quarterly aircon maintenance appointment with Silverback Aircon technicians. The following table shows the annual pricing costs for quarterly aircon servicing. A quarterly maintenance schedule is a cost-effective solution to recurring York aircon problems. It also makes your life easier because you won’t have to deal with aircon maintenance tasks that might prove to be disruptive to your full day-to-day schedule.
