Troubleshooting (Continued)
Problem
Clock loses time.
(continued).
Not applicable on model used in heating-only system.
1
Not applicable on model used in cooling-only system.
2
If this Troubleshooting section has not solved the problem, call a qualified service technician or
Honeywell Assistance Center, 1-800-468-1502, Monday-Friday, 7:00 a.m. to 5:30 p.m., Central time,
for additional assistance.
Check
—high limit control. If clock-
powered through system trans-
former, power to clock and
equipment may be off for safety.
—filter. May be clogged. Safety
limit on equipment may cut off
power to system.
— backup batteries may need
replacement.
Action
Wire separate transformer to power
clock, or install backup batteries as
shown on page 9.
Replace filter and reset clock.
Replace with two new AAA alkaline
batteries. See page 9.
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