mjlayton Report post Posted February 12, 2017 Replaced the original fan last July. On our recent trip the A/C quit cooling at idle, no voltage at fan with A/C on. Have a few possible wiring diagrams, all show a fused circuit and relay activated by the temperature switch or A/C controls. No fuses or relay ahead of the firewall. Does anyone know where this relay might be located? Thanks, Mike Layton Share this post Link to post Share on other sites
jrock Report post Posted February 12, 2017 Could be low freon Share this post Link to post Share on other sites
mjlayton Report post Posted February 13, 2017 Actually the A/C is going out on high limit because of the lack of airflow at idle. The auxiliary fan provides additional flow over condenser coil over 221deg or when A/C is on. Thanks for your input. Share this post Link to post Share on other sites
manholt Report post Posted February 13, 2017 I know that Fleetwood used the P-30, don't know if they still do, but you could give them a call and ask someone in Tech Dept. Only a suggestion, I did do a search on this Forum and found nothing that would help you. I don't know who bought the parent company of Dolphin, or if anybody did...you might know! If you do, give them a call. Sorry I can't be off more help. Carl Share this post Link to post Share on other sites
mjlayton Report post Posted February 13, 2017 Thanks, one of their suppliers in California bought all the rights to their name, trademarks, and patents. No plans to manufacture. Owned a 97 Fleetwood Flair. Fleetwood (Winnebago) does not support pre-bankruptcy units. Share this post Link to post Share on other sites
jrock Report post Posted February 13, 2017 http://www.gmcmi.com/wp-content/uploads/2014/05/P30-Chassis-Manual.pdf A P30 is a Chevy cutaway. Try this-- see if it helps. Share this post Link to post Share on other sites
mjlayton Report post Posted February 16, 2017 Problem solved. Thanks to all, it was a bad high pressure switch. Still looking for the fuse and relay location for future reference. Share this post Link to post Share on other sites