8
RESEARCH PRODUCTS CORPORATION
P.O. BOX 1467 • Madison, WI 53701-1467 • Phone: 800/334-6011 • Fax: 608/257-4357 •
www.aprilairecontractor.com
TROUBLESHOOTING
(CONTINUED)
61000474 5.06
B2204149A
Printed in China
LIMITED WARRANTY
Your Research Products Corporation Aprilaire
®
Thermostat unit is expressly warranted for two (2) years from date of installation to be free from defects in materials and workmanship.
Research Products Corporation’s exclusive obligation under this warranty shall be to supply, without charge, a replacement for any thermostat which is found to be defective within a two (2) year period and which
is returned, together with the date of installation, no later than thirty (30) days after said two (2) year period by you to either your original supplier or to Research Products Corporation, Madison, Wisconsin 53701.
THIS WARRANTY SHALL NOT OBLIGATE RESEARCH PRODUCTS CORPORATION FOR ANY LABOR COSTS AND SHALL NOT APPLY TO DEFECTS IN WORKMANSHIP OR MATERIALS FURNISHED BY
YOUR INSTALLER AS CONTRASTED TO DEFECTS IN THE THERMOSTAT ITSELF.
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE AFORESAID TWO YEAR PERIOD. RESEARCH PRODUCTS CORPORATION’S
LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, OTHER THAN DAMAGES FOR PERSONAL INJURIES, RESULTING FROM ANY BREACH OF THE AFORESAID IMPLIED WARRANTIES OR THE
ABOVE LIMITED WARRANTY IS EXPRESSLY EXCLUDED. THIS LIMITED WARRANTY IS VOID IF DEFECT(S) RESULT FROM FAILURE TO HAVE THIS THERMOSTAT INSTALLED BY A QUALIFIED HEATING AND AIR
CONDITIONING CONTRACTOR. IF THE LIMITED WARRANTY IS VOID DUE TO FAILURE TO USE A QUALIFIED CONTRACTOR, ALL DISCLAIMERS OF IMPLIED WARRANTIES SHALL BE EFFECTIVE UPON INSTALLATION.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitations may not apply to you.
This warranty gives you specifi c legal rights and you my also have other rights which vary from state to state.
WARRANTY REGISTRATION
Please… Take a few minutes to visit us online at
www.aprilaire.com
to register your Aprilaire product. If you do not have online access,
please mail a postcard with your name, address, phone number, product or model purchased, date of purchase and dealer name to:
Research Products Corporation, P.O. BOX 1828, Madison, WI 53701
YOUR WARRANTY REGISTRATION INFORMATION WILL NOT BE SOLD OR SHARED OUTSIDE OF THIS COMPANY.
Symptom
Possible Cause
Corrective Action
Heat, Cool or Fan Runs
Constantly
1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in heat/cool/fan
system.
4. Fan Switch set to Fan On.
1. – 4. Check each wire connection to verify they are not shorted or touching
together. No bare wire should stick out from under terminal screws. Try
resetting the thermostat as described on page 7. If the condition persists, the
manufacturer of your system or service person can instruct you on how to test
the Heat/Cool system for correct operation. If the system operates correctly,
replace the thermostat.
Furnace Cycles Too Fast or
Too Slow
(narrow or wide
temperature swing)
The location of the thermostat and/or
the size of the Heating System may be
infl uencing the cycle rate.
Digital thermostats normally provide precise temperature control and may
cycle faster than some older mechanical models. A faster cycle rate means the
unit turns on and off more frequently but runs for a shorter time so there is no
increase in energy use. If you would like to increase the cycle time, change the
cycle rate to “SL” in the confi guration menu. It is not possible to shorten the cycle
time. If an acceptable cycle rate is not achieved as received or by changing the
cycle rate, contact a local service person for additional suggestions.
Cooling Cycles Too Fast
or Too Slow
(narrow or wide
temperature swing)
The location of the thermostat and/or
the size of the Cooling System can
infl uence the cycle rate.
The cycle rate for cooling is fi xed and cannot be adjusted. Contact a local service
person for suggestions.
Thermostat Setting and
Thermostat Thermometer
Disagree
Thermostat thermometer setting
requires adjustment.
The thermometer can be ad/- 4 degrees. See
Select Temperature
Display Adjustment
(#5 in the Confi guration Menu section).
Thermostat Does Not
Follow Program
1. AM or PM set incorrectly in program.
2. AM or PM set incorrectly on the
clock.
3. Voltage spike or static discharge.
4. Thermostat may be performing
Progressive Recovery actions.
1. – 3. Check current clock and program settings including the AM or PM
designations for each time period. If a voltage spike or a static discharge
occurs use the
Reset Operation
listed on page 7 in this Troubleshooting
section.
4. Disable Progressive Recovery from the Confi guration Menu if this feature
is not desired.
Blank Display and/or
Keypad Not Responding
Voltage spike or static discharge.
If a voltage spike occurs, use the
Reset Operation
listed on page 7 in this
Troubleshooting section.
Clock Loses or Gains Time
Loss of power to thermostat.
The thermostat will maintain its program in memory even with no power but the
clock time will be incorrect when power is restored.
See No Heat/No Cool/No Fan (common problems) in the Troubleshooting chart on
page 7 for items to check in the system.
Heat or Cool Starts Early
Progressive Recovery activated.
See
Confi guration Menu
item #4.
