t° Menu: supply and return air temperature display

What the display is showing

Main menu item (59MN7C) that turns on the display of supply and return air temperature in F or C. Default is off. When on, the display rotates through the operating mode, supply air temperature (SAT), return air temperature (RAT) and the difference between them. This only happens while heating, cooling or heat pump operation is running.

Applies to: 59MN7C modulating furnace

What to do

1. Scroll to t° and choose F or C (or off).
2. If the displayed SAT does not agree with a thermometer, move the SAT sensor further from the furnace or past a bend in the duct.

Settings for these units

• Filter sizes by casing width and filter cabinet · 59SC6A
• Filter sizes by casing width and filter cabinet · 59TP6A
• Minimum clearances to combustibles · 59TP6A
• Minimum clearances to combustibles · 59SC6A
• Filter sizes by casing width · 58SB0A/58SB1A
• Filter sizes by casing width · Payne PG96VTA

Models that show this code

6 models in 59MN7C

Other codes on the same units

• dir Menu: display orientation
• dnF Display set for downflow
• iDl Idle - standby, no demand
• inF Menu: program number and software
• non No faults stored
• rSt Menu: reset to factory defaults
• tSt Component test started
• uEr Startup display - software version