PDA

View Full Version : Furnace failure

joegomez1954
Feb 13, 2019, 08:39 AM
Rheem prestige furnace fires up only after upper panel removed
Flashing codes 5 & 7
ma0641
Feb 13, 2019, 11:34 AM
Sure it's not 57? Pressure switch is not closing. Make Sure the cover isn't crimping the switch hoses.