Honeywell Q682 - Manuel (Page 23)

23 69-0628B—1
AC voltage at
C-C terminals Possible cause
check Action
0 Vac. 1. System power Off. 1. Restore power.
2. Short in clock power supply wiring. 2. Replace wiring.
3. Limit switch contacts stuck open. 3. Free or replace limit switch.
4. Transformer supplying power is burned
out.
4. Replace transformer.
Up to 15 Vac. 1. System transformer used to power the
clock is inadequate.
1. Use additional (separate)
transformer.
2. Additional (separate) transformer used
to power the clock has inadequate
voltage.
2. Install transformer with proper
secondary voltage.
15 to 30 Vac. 1. Spring fingers on thermostat not
making proper contact with subbase
terminals.
1. Rebend spring fingers to a
45 degree angle to assure
proper contact.
2. Clock has failed. 2. Replace thermostat.
Voltage At Clock Terminals