Honeywell B/Q682 Thermostat User Manual


 
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Troubleshooting
Your Honeywell thermostat requires little or no attention. Most problems can generally be
traced to the following:
(continued)
1
Problem Check Action
No heat. system switch. May be in OFF
or COOL position.
Move system switch to HEAT position.
fuse or circuit breaker. If blown or tripped, replace fuse or reset
breaker.
furnace power switch. May be
Off.
Move switch to ON.
pilot flame. May be out. Relight pilot flame per furnace manufacturers
instructions.
—R and W thermostat
connections.
Turn Off power to furnace. Check for correct
terminal hookups. Repair any frayed or broken
wires. Firmly tighten all terminal screws. Turn
On power.