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HINTS & TIPS 

• 

Make sure the 

FanConnect

 switch is in the OFF position when the 

AirCycler® g2

 controller is first 

powered on. 

• 

Setup is easier to start without the battery installed. The battery is only used for the real time clock. 
If you are not using the operating hours options, the battery is not needed.

TROUBLESHOOTING

No power? 

 

Check common wire connection. “C” must be connected to “C” on the furnace.

EXH icon is flashing

If the EXH icon is flashing it is indicating that the 

FanConnect 

switch has been on for more than four 

hours or has lost connection with the g2 controller. 

My furnace fan runs constantly

Make sure the thermostat FAN switch is set to AUTO and not ON. 

 

Fan does not shut off when

 

AirCycler

®

 g2

 is removed from its base (when thermostat fan switch 

is on) 

Check wiring - G wire from thermostat should be wired to Gt on AirCycler. Gf on AirCycler should 

be connected to G on furnace.

 

FAQ

 

Will the AirCycler controller lose the settings if the power fails?

No, all settings are saved in non-volatile memory.  No battery is needed.

The 

AirCycler® g2

 has a small lithium battery to keep the clock running if you are not ventilating 24hrs 

a day and are using that feature. It will maintain the time without power for at least 14 days. 

 

Can I run multiple

 FanConnect 

switches off of one 

AirCycler® g2

 controller? 

No. For additional bathrooms use the 

SmartExhaust

 bath fan/light switch as an independent controller.

®

For more information about this product, 

please visit www.aircycler.com or email  

[email protected]

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