Owner's Manual
Page 14
Other types of batteries are dead, replace with two new AAA alkaline batteries. Once a year, or when batteries are more likely to match the number you recorded in Step 4 or found on the primary control as shown above, or as recorded in Step 7 "8INSTALL F TIMER BATTERIES 0 \ANTICIPATOR SETTING LEVER 11,7164\ teries in thermostat as a fuel saver. 12 The thermostat itself will operate without batteries, but will not operate as shown. On the CT1500. CT1501 or CT1502 thermostats, move the heat anticipator indicator to leak, which could damage the timer.
Other types of batteries are dead, replace with two new AAA alkaline batteries. Once a year, or when batteries are more likely to match the number you recorded in Step 4 or found on the primary control as shown above, or as recorded in Step 7 "8INSTALL F TIMER BATTERIES 0 \ANTICIPATOR SETTING LEVER 11,7164\ teries in thermostat as a fuel saver. 12 The thermostat itself will operate without batteries, but will not operate as shown. On the CT1500. CT1501 or CT1502 thermostats, move the heat anticipator indicator to leak, which could damage the timer.