Honeywell B/Q682 Owner's Manual page 18

Troubleshooting (continued)
Problem
Timer is losing time
(continued).
Timer does not run.
Check
— high limit control. If clock
powered through system trans-
former, power to clock and
equipment may be Off on
safety.
— filter. May be clogged. Safety
limit on equipment may cut off
power to system.
— voltage across the C and R
terminals.
Wire separate transformer to power clock.
Replace filter and reset clock.
Remove the thermostat from the wallplate or
subbase, and measure the voltage. Refer to
page 19 for cause and action.
18
Action
(continued)
69-0563—2