Lets do the math:
Before we would normally charge $150-180 for a repair service which would include a repair by a properly educated skilled technician with the proper certifications, all needed new parts and return shipping. Customer would be required to ship his/her air purifier to our repair facility. Shipping cost of something as heavy as 18-20 lb is about 30 dollars plus the cost of the shipping box and packing material. If you need any new accessories such as ozone plates and filters add another $30-$50 to your total out of pocket cost. All this adds up costing you way over $200 to repair your old air purifier. We do not recommend that anymore. Not ever since you can get a brand new air purifier of excellent quality for only 199.99 with all new accessories and free shipping.
On top economical reasons, there are other disadvantages of repairing instead of replacing.
Short life warranty. Please note your air purifier has a electronics board inside, that includes about a 100 different electronic components. Your repair service would only include replacing the defective components and leaving other aged components untouched. Sooner then later other components will start giving out and cause your machine to malfunction again.
Be careful who you trust with repairing your air purifier.
Ozonators are actually very sophisticated machines with up to 5000 volts electricity. If not repaired or wired property it can cause a fire. Some technicians may not have a proper education and do not follow all proper procedures when repairing air purifiers.