Honeywell 191108AJ - Manual (Page 14)

14 69-0643—1
Troubleshooting
Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to
the following.
Problem Check Action
No heat. — System switch may be in OFF Move system switch to HEAT position.
or COOL position.
— Fuse or circuit breaker. If blown or tripped, replace fuse or
reset breaker.
— Furnace power switch may be Move switch to ON .
OFF.
— Pilot flame may be out. Relight pilot flame according to furnace
manufacturer instructions.
— 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.
— Other. Contact a qualified service technician
for assistance.
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