When should I replace the Chillcel pads (the ones that look like honeycomb) on my air conditioner?

With ChillCel Pads, you should expect to change these every seven to eight years. This can vary with water quality and local conditions. WARNING With any filter pad, failure to replace filter pads when they are past their useful life may result in reduced efficiency/performance of the air conditioner. Water may carry over into the ductwork and/or electrics, which may result in expensive damage and repairs.