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Auto Recovery
Auto Recovery calculates how early to turn your system
back on, so that the room temperature is
already comfortable by the start of the program
period. Auto Recovery works in both Heat and
Cool modes.
• When the thermostat is in Auto Recovery mode, the
display will alternate RECO with time, and the program
indicator will flash
• Auto Recovery can be disabled by sliding the Recovery
switch on the circuit board to disable.
• Auto Recovery will not operate if Permanent Hold or
Temporary Hold is in operation.
• Auto Recovery can be canceled manually if HOLD is
pressed during the recovery process. If a recovery
process is canceled manually then the recovery process
will not start again until the next program period starts
(an exception is that if time or program is changed then
the thermostat will check Auto Recovery conditions
immediately).
• Auto Recovery will be canceled and change to next period.
• Auto Recovery will be canceled and change to Home
Today mode if HOME TODAY is pressed during the
recovery process.
Keyboard lock
The keyboard can be locked to prevent
unauthorized changes to the thermostat.
To lock or unlock the keyboard, press and hold
the hold/run key for 3 seconds. The keyboard is locked
when LOCK appears on the display.
• When all keys are locked, LOCK will appear on the display
for 1 second any time a key is pressed.
Backlighting
Your thermostat has an electroluminescent lamp that
backlights the display for easy viewing in the dark. When
any key is pressed the display is illuminated.
The display will remain illuminated for 8 seconds after the
last key is pressed. This allows the light to stay on if you
need to operate several keys.
NOTE: If the thermostat is in Low Battery warning
condition, the backlight will not operate. Replace with 2
new AA alkaline batteries to restore the Backlight function.
Low Battery Warning
Your thermostat has a two-stage lower battery
warning system. When the batteries are first
detected to be weak, the first stage low battery
warning is indicated by BATT flashing on the
LCD display. Replace the batteries with 2 new
AA alkaline batteries.
When the batteries become too weak for normal
operation, the thermostat enters the second stage low
battery warning which shuts down the thermostat. In
this condition, BATT flashes alone on the display, and the
thermostat will turn your system off. Your system will
remain off until the batteries are replaced.
NOTE: The thermostat will still keep the current Set
Temperature and Filter run time in memory until new
batteries are installed. After confirming that new batteries
have been inserted, the thermostat will return to normal
operation.
Error Mode
If the thermostat is unable to control your
system due to an unexpected battery problem,
the thermostat will enter Error Mode. In this
condition, the thermostat flashes E1, E2, E3 or
E4 on the LCD display, and shuts off your system.
To correct this problem, replace the batteries
with 2 new AA alkaline batteries, even if you have recently
replaced them. Press the reset button once with a small
pin and hold for two seconds then reprogram.
If Error Mode returns, please contact us for further
information.
Warning Mode
If the Malfunction Input (L) from the heat pump
is active, the thermostat flashes E5 on the LCD
display.
Auto Cut Off
Your thermostat will automatically shut down in Heat
mode if the room temperature rises above 95°F (35°C).
It will shut down in Cool mode if the room temperature
drops below 40°F (4°C).
Note that if your system has malfunctioned and no longer
responds to thermostat controls, the Auto Cut-Off will have
no effect.
Customer Service Telephone 1.800.304.6563
Customer Service Facsimile 1.800.426.0804
HVACCustomerService@robertshaw.com
TROUBLESHOOTING
Problem
Scrambled or double
display
(numbers over numbers)
No display
Entire display dims
Program does not change
at your desired settings
Auto fan does not
turn on properly
Erratic display
If unit continues to
operate in the OFF
position
Thermostat permanently
reads E1, E2, E3, E4
If you experience any other problems, contact Technical Support
service at: TechnicalService@robertshaw.com or (800) 445-8299.
For Technical Service
Telephone 1.800.445.8299
TechnicalService@robertshaw.com
Solution
1. Remove clear mylar sticker.
1. Check battery connections and
batteries.
2. Press the reset button once with
a small pin and hold for two
seconds then reprogram.
1. Replace batteries.
1. Check that the time is set
properly to AM or PM.
2. Check that the thermostat is not
in HOLD or Home Today mode.
3. Check for the correct day
settings.
1. Move ELEC/GAS selector to
opposite position.
2. There may be as much as a 4
minute delay before the heat or
cool system turns on. Wait and
check. (Compressor protection
delay)
3. Check your circuit breakers
and switches to ensure there is
power to the system.
4. Replace batteries.
5. Make sure your furnace blower
door is closed properly.
6. Check the position of the Furnace
or Heat Pump selector switches:
Normal/O/B.
Press the reset button once with a
small pin and hold for two seconds
then reprogram.
1. Replace unit.
1. Replace unit.
Robertshaw®, Uni-Line® and PerfectSense
TM
its subsidiaries and/or affiliated companies. All other brands mentioned
may be the trademarks of their respective owners.
Two Year Limited Warranty
Robertshaw warrants to the original contractor installer or
to the original consumer user that each new PerfectSense
Product shall be free from defects in materials and
workmanship under normal use and service for a period
of two (2) years from the date of manufacture ("Warranty
Period"). If any Product fails within the applicable Warranty
Period, Robertshaw shall, at its sole option, repair or
replace the Product, provided that the Product is returned
to Robertshaw facility or designated agent within the
Warranty Period, with transportation charges prepaid, and
that the Product, upon examination by Robertshaw, is found
to conform to this warranty. The above warranty does not
apply to: i) batteries; ii) improper installation; iii) Products
that have been damaged, misused, neglected, mishandled,
or altered in any manner whatsoever, and/or; iv) defects or
damage that result from use of the Product in other than
its normal and customary manner or in any manner not
in accordance with Robertshaw recommendations and/or
instructions. Any and all costs of labor, thermostat removal,
or reinstallation are not covered under this warranty and
shall be the sole responsibility of the consumer or installer,
as applicable.
THE FOREGOING WARRANTY IS IN LIEU OF AND
EXCLUDES ALL OTHER WARRANTIES, WHETHER VERBAL
OR WRITTEN, EXPRESS OR IMPLIED INCLUDING, EXCEPT
TO THE EXTENT PROHIBITED BY APPLICABLE LAW, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
SHALL ROBERTSHAW BE LIABLE TO CONSUMER,
CONTRACTOR OR ANY THIRD PARTY FOR ANY
CONSEQUENTIAL, INCIDENTAL, SPECIAL OR PUNITIVE
DAMAGES ARISING FROM OR RELATING TO USE OF
THE PRODUCT INCLUDING, BUT NOT LIMITED TO, LOSS
OF GOODWILL, LOSS OF PROFIT OR REVENUE, AND
PROPERTY DAMAGE, REGARDLESS WHETHER SUCH
LOSS OR DAMAGE IS BASED IN CONTRACT, WARRANTY,
TORT, NEGLIGENCE, STRICT LIABILITY, INDEMNITY,
PRODUCT LIABILITY, OR OTHERWISE AND EVEN IF
ROBERTSHAW HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES.
are trademarks of Robertshaw,
www.uni-line.com
www.robertshaw.com
©2015 Robertshaw
10/15 – 352-00240-001
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