Selector Switches
For this thermostat to control your system, the system
type must be specified by the selector switches on the
printed circuit board inside the thermostat. There is also
a selector switch for your choice of Fahrenheit or Celsius
temperature display. See Figure 6.
• Heating System Selector (HG – HE switch)
The factory position for this switch is the HG position.
Leave it in this position if you have a gas furnace or an
oil burner. If you have an electric furnace, test to see
whether the heat and fan come on as expected after
installation. If the fan operation is normal, leave it in
the HG position. If the fan does not come on within a
minute of the thermostat calling for heat, change the
switch position to HE. The system selector has no
effect in the cooling mode. NOTE: HG is for gas and
most other systems. HE is for certain electric systems
having a fan relay.
• System Selector (STANDARD – HEAT PUMP switch)
The factory position for this switch is in the STD
position. Leave it in this position if you have ANY
system that uses gas, oil, electric, or hot water heating.
If you have a single stage heat pump (no auxiliary or
emergency heat source), then slide the switch to the
HP position. Be sure the reversing valve wire is
connected to the correct terminal for your heat
pump (Rc/O) or (Rh/B).
• F° / C° selector (Fahrenheit - Celsius switch)
Your thermostat is set for F° mode from the factory.
To change to C° mode, slide the switch to C° and hold
any key for 2 seconds with the battery removed, then
replace the battery.
Figure 6
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, INCIDENTIAL, 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.
TROUBLESHOOTING
Problem
Solution
No display
1. Check battery connections and
batteries.
2. Remove the battery and wait for
about 1 minute, then replace
batteries.
Entire display dims
1. Replace batteries.
Auto fan does not
turn on properly
1. Move HG/HE selector to correct
position.
Heating or cooling does
not go on or off
1. Check that the System switch is
in the correct position (HEAT or
COOL).
2. There may be as much as a
4-minute delay before the
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. If your non-heat pump system
only uses 4 wires, be sure the
jumper wire is installed between
the Rh/B and Rc/O terminals.
7. Check the position of the System
selector switch: Standard or Heat
Pump.
8. If you have single stage heat
pump, be sure the jumper wire
is installed between the Y and W
terminals.
Erratic display
1. Remove the battery, hold any
key then replace the battery.
Reprogram.
Unit continues to operate
in the OFF position
1. Replace unit.
Thermostat permanently
reads HI, LO, or Er
1. Replace unit.
If you experience any other problems, contact Technical Support
service at: [email protected] or (800) 445-8299.
Customer Service Telephone 1.800.304.6563
Customer Service Facsimile 1.800.426.0804
Robertshaw®, Uni-Line® and PerfectSense
TM
are trademarks of Robertshaw,
its subsidiaries and/or affiliated companies. All other brands mentioned
may be the trademarks of their respective owners.
For Technical Service
Telephone 1.800.445.8299
www.uni-line.com
www.robertshaw.com
©2015 Robertshaw
10/15 –352-00237-001
