Honeywell Trol-A-Temp T8090T Owner's Manual page 19

Troubleshooting (continued)
PROBLEM
Clock does not run.
Thermostat setting
and thermometer
reading disagree.
Applicable on zone 1 thermostat only.
1
Not applicable on heating-only system.
2
If this Troubleshooting section has not solved the problem, call a qualified Trol-A-Temp
customer service at or service technician, 1-800-828-8367 for additional assistance.
CHECK
—voltage across the C and R
terminals.
—level position of thermostat.
—area around thermostat for drafts
or radiant heat.
—calibration of thermometer.
ACTION
Remove thermostat from the wall-
plate or subbase, and measure the
voltage. Refer to page 20 for cause
and action.
Reinstall thermostat wallplate or
subbase. Use a spirit level.
Thermostat should be about 5 ft
[1.5m] above floor on an inside wall.
Contact qualified service technician
for change of location.
See instructions on page 22.
19
®
69-0432—1