# Repairing copper coil in central A/C unit - HVAC question **URL:** \ **Category:** Factual Questions\ **Created:** [November 25, 2008, 5:21pm UTC](https://boards.straightdope.com/t/repairing-copper-coil-in-central-a-c-unit-hvac-question/474452 "2008-11-25T17:21:36Z")\ **Posts on this page:** 1\ **Showing post:** 8
**Author:** ![Dag\_Otto](https://avatars.discourse-cdn.com/v4/letter/d/439d5e/32.png) [@Dag\_Otto](https://boards.straightdope.com/u/Dag_Otto)\ **Post date:** [November 26, 2008, 7:08pm UTC](https://boards.straightdope.com/t/repairing-copper-coil-in-central-a-c-unit-hvac-question/474452/8 "2008-11-26T19:08:16Z")
> [@silk1976](#): > > So he wants to sell me a new coil. > > It seems shady to me. I mean - this sort of thing has to happen often enough that the solution cannot be to replace the coil every time. He should be willing to provide a warranty with a new coil. Doesn’t sound like he would do that with a patch, and a second service call won’t make anyone involved happy. The R-22 sounds high, but does it include the time/steps necessary to charge the system? He may just charge a flat rate per pound on small jobs that include his time. --- _[View the full topic](https://boards.straightdope.com/t/repairing-copper-coil-in-central-a-c-unit-hvac-question/474452)._