I have an old Heil natural gas central unit. It is about twenty years old and is only used as a backup heat source.
The pervious owner did not use it in the twelve years that he owned the home and could not tell me anything about it.
The thermostat was defective so I installed a good T87F thermostat. The T87F has a heat anticipator adjustment that I can't seem to get right. The 24v transformer is actually producing 29.68 volts. This is app. 1.40 amps and the honeywell setting only goes to 1.2 amps.
Even with the anticipator set to 1.2 the heat cycles are to frequent and too short. In fact, adjusting the anticipator has little effect on the cycling period.
Should I replace the transformer with a new 24v or purchase a new thermostat or both?