BAC Forum
General Boards => Technical Support => Topic started by: Dale Malquist on October 15, 2019, 12:25:22 AM
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Our 2007 Contessa has three rooftop air conditioner/heat pumps. The center and rear are controlled by the thermostat in the bedroom. Zone 2 center is working on heat pump. Zone 3 rear heat pump is not coming on. The furnace setting works. I replaced the thermostat and it displays a EE. Other forums suggest communication cable or corrosion problem.
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try resetting the thermostat:
If your thermostat gives the "EE" error code, use the following instructions to reset the thermostat.
1.) Turn the ON/OFF switch to “OFF” position.
2.) Simultaneously depress and hold the MODE and ZONE push-buttons while turning the ON/OFF switch to “ON”. FF should appear in the LCD display until the MODE and ZONE push-buttons are released. If EE appears when the buttons released, do the reset again. If EE keeps coming back there is a communication problem with the cable.
3.) When a dip switch is turned on or off after initial configuration, a system reset will need to be done before the Comfort Control Center will recognize the updated selection. Any time a component is added or removed it would be best to do a reset. There are no repairs to be done to the Comfort Control thermostat.
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Dale, did you have a 5 button thermostat? If you replaced the bedroom thermostat tell me the model you replaced it with. Fred