Troubleshooting - Honeywell RTH6500WF Wi-Fi Series User Manual

Troubleshooting

If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is • Check circuit breaker and reset if necessary.
• Make sure power switch at heating and cooling system is on.
blank
• Make sure furnace door is closed securely.
• Make sure C wire is connected (see page 13).
Cannot change • Check Function 1: System Type to make sure it is set to match your heating
system setting
to Cool
Fan does • Check Function 3: Heating Fan Control to make sure it is set to match your
not turn on
when heat is
required
Cool On or Heat
• Compressor protection feature is engaged. Wait 5 minutes for the system to
On is flashing
on the screen
69-2718ES_A.indd 61
and cooling equipment (see page 50).
heating equipment (see page 51).
restart safely, without damage to the compressor.
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