Honeywell T8090A/191108AJ Manuel page 17

Troubleshooting (Continued)
Problem
Room temperatures
are not correct
(continued).
Applicable to heating-cooling subbase only.
1
Check
— thermostat circuits. HEATING-ONLY SYSTEM—Move temperature
setting levers 5°F (3°C) above room temp-
erature. Heating system should start. If the
system does not operate, call a qualified
service technician.
COOLING-ONLY SYSTEM—Move temperature
setting levers 5°F (3°C) below room temp-
erature. Cooling system should start. If the
system does not operate, call a qualified
service technician.
HEATING/COOLING SYSTEM—With system
switch at HEAT, move temperature setting
levers 5°F (3°C) above room temperature.
Heating system should start. With system
switch at COOL, move temperature setting
levers 5°F (3°C) below room temperature.
Cooling system should start. If the systems do
not operate, call a qualified service technician.
17
Action
Continued
69-0628B—1