Honeywell T8131B Owner's Manual - Page 32

Troubleshooting Guide

Get Honeywell T8131B PDF manuals and user guides View all Honeywell T8131B manuals
Add to My Manuals
Save this manual to your list of manuals

Page 32 highlights

Troubleshooting Guide IF... Display will not come on. Temperature display will not go lower than 45°F (7°C) or higher than 88°F (31°C) during programming. Temperature change occurs at the wrong times. Heating will not come on. THEN... s Check that the green light emitting diode (LED) located to the left of the LCD is lit, indicating the thermostat is powered properly. s You have reached the temperature setting limit. The setting range is 45°F to 88°F (7°C to 31°C). s Check the program times for the period in question. Be sure that AM and PM indications are correct. Make sure the current day and time are correct. Reprogram if necessary. s Check that the green LED is lit. s Check that the switch on the thermostat is set to HEAT. 32 69-0887-1

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
32
69-0887—1
Troubleshooting Guide
IF…
THEN…
Display will not come on.
■
Check that the green light emitting diode (LED)
located to the left of the LCD is lit, indicating the
thermostat is powered properly.
Temperature display will not go lower
■
You have reached the temperature setting limit.
than 45
°
F (7
°
C) or higher than 88
°
F
The setting range is 45
°
F to 88
°
F (7
°
C to 31
°
C).
(31
°
C) during programming.
Temperature change occurs at the
■
Check the program times for the period in
wrong times.
question. Be sure that AM and PM indications are
correct. Make sure the current day and time are
correct. Reprogram if necessary.
Heating will not come on.
■
Check that the green LED is lit.
■
Check that the switch on the thermostat is set to
HEAT.