How much does it cost to fix a frozen coil?

The cost to fix a frozen air conditioning coil can vary dramatically depending on whether the issue stems from a simple maintenance oversight or a more complex mechanical failure. If the freezing is caused by a severely clogged air filter or blocked return vents, the fix might cost virtually nothing other than the price of a new air filter, which typically ranges from ten to fifty dollars. However, if the underlying problem is a refrigerant leak, a failing blower motor, or a damaged expansion valve, professional repair costs can escalate quickly. Repairing a refrigerant leak and recharging the system with R-410A or alternative refrigerants generally costs between two hundred and fifteen hundred dollars, depending on the size of the leak and the amount of refrigerant needed. Replacing a faulty indoor blower motor or capacitor can range from one hundred and fifty to six hundred dollars in parts and labor. If the evaporator coil itself is corroded beyond repair and needs complete replacement, expenses can easily run between nine hundred and twenty-two hundred dollars, making professional diagnosis essential before proceeding with repairs.