Table of Contents
3
26
Installation
Features
System Selector Switches
Connecting Wires and Mounting Thermostat
Programming/Setting Clock
Personal Program Schedule
Reviewing Program Settings
Manual Override
Backlighting
Trouble Shooting Guide
Wiring Diagrams 27
Operation (Programming)
6
10
10
12
15
21
22
25
26
Problem
Solution
1) Remove clear mylar sticker.
SCRAMBLED OR DOUBLE DISPLAY
(numbers over numbers)
NO DISPLAY
1) Check battery connections and batteries.
2) Press reset button once with a small pin
and hold in for two seconds.
ENTIRE DISPLAY DIMS
1) Replace Batteries.
PROGRAM DOES NOT CHANGE AT
YOUR DESIRED SETTING
1) Check that time is set properly to “AM” or
“PM.”
2) Check that thermostat is not in “HOLD”
mode.
3) Check for correct day setting.
ERRATIC DISPLAY
1) Press the reset button once with a small pin
and hold in for two seconds. Then reprogram.
THERMOSTAT READS HI, LO
PERMANENTLY
1) Replace unit.
Troubleshooting
