Troubleshooting - Honeywell PROGRAMMABLE THERMOSTAT RTH6350 Quick Installation Manual

Advanced Installation Guide

Troubleshooting

Troubleshooting
If you have difficulty with your thermostat, please try
the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank • Make sure fresh AA alkaline
Temperature
settings do not
change
Cannot change
system setting
to Cool
Fan does not
turn on when
heat is
required
Heating and
cooling
equipment
running at the
same time (or
heat does not
turn off)
69-2416ES—05
batteries are correctly installed
(see page 7).
Make sure heating and cooling
temperatures are set to acceptable
ranges:
• Heat: 40° to 90 °F (4.5° to 32 °C).
• Cool: 50° to 99 °F (10° to 37 °C).
• Check Function 1: System Type to
make sure it is set to match your
heating and cooling equipment
(see page 14).
• Check Function 3: Heating Fan
Control to make sure it is set to
match your heating equipment (see
page 16).
• Check Function 1: System Type to
make sure it is set to match your
heating and cooling equipment
(see page 14).
• Grasp and pull thermostat away
from wallplate. Check to make sure
bare wires are not touching each
other (see page 6).
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