White Rodgers PART NO. 37-6509A - Manual (Page 9)

9
TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING
Symptom Symptom Symptom Symptom Symptom
Thermostat Setting & Thermostat Setting & Thermostat Setting & Thermostat Setting & Thermostat Setting &
Thermostat Thermometer
Thermostat Thermometer Thermostat Thermometer Thermostat Thermometer Thermostat Thermometer
Disagree
Disagree Disagree Disagree Disagree
Blank Display and/or Blank Display and/or Blank Display and/or Blank Display and/or Blank Display and/or
Keypad Not Responding
Keypad Not Responding Keypad Not Responding Keypad Not Responding Keypad Not Responding
Heat Setpoint will Heat Setpoint will Heat Setpoint will Heat Setpoint will Heat Setpoint will
not Respond to the
not Respond to the not Respond to the not Respond to the not Respond to the
Temperature Up Key
Temperature Up Key Temperature Up Key Temperature Up Key Temperature Up Key
Cool Setpoint will Cool Setpoint will Cool Setpoint will Cool Setpoint will Cool Setpoint will
not Respond to the
not Respond to the not Respond to the not Respond to the not Respond to the
Temperature Down Key
Temperature Down Key Temperature Down Key Temperature Down Key Temperature Down Key
Forgot Keypad Forgot Keypad Forgot Keypad Forgot Keypad Forgot Keypad
Lockout Code
Lockout Code Lockout Code Lockout Code Lockout Code
Why won't my 2nd or Why won't my 2nd or Why won't my 2nd or Why won't my 2nd or Why won't my 2nd or
3rd stage come on?
3rd stage come on? 3rd stage come on? 3rd stage come on? 3rd stage come on?
Possible Cause Possible Cause Possible Cause Possible Cause Possible Cause
1. Thermostat thermometer setting
requires adjustment.
1. Voltage spike or static discharge.
1. The desired setpoint conflicts with the
setpoint of the COOL mode.
1. The desired setpoint conflicts with the
setpoint of the HEAT mode.
Corrective Action Corrective Action Corrective Action Corrective Action Corrective Action
The thermometer can be adjusted +/- 3 degrees.
See Temperature Display Adjustment in the
Configuration Menu section.
Use the Reset Operation at top of previous page.
Change system mode to COOL. Raise the Cool
setpoint. Return to HEAT mode and set desired
temperature.
Change system mode to HEAT. Lower the Heat
setpoint. Return to COOL mode and set desired
temperature.
CAUTION: This resets the thermostat to factory
default settings of the configuration menu. After
performing this reset, the thermostat will require
configuration again. Be sure that you know the
required configuration settings before resetting.
With the thermostat in any mode, press and
at the same time to enter the configuration menu at
the point where the lockout code is to be entered.
Press
and and SYSTEM button at the same
time to reset the lockout code, unlock the keypad
and reset all configuration menu settings.
Your thermostat is designed to determine the
optimum time to activate the second stage. Simply
raising the temperature in heating or lowering it in
cooling will not always force the thermostat to bring
the second stage on quickly. There is a time delay
from 0-30 minutes depending on the performance
of the first stage of the system.