Make:  York

Model or Series:  Yorkguard

Type:  Heat Pump

Problem Description:  Thermostat red light flashing continuous

Observed Symptoms:  Rapid red flashing at thermostat

Solution:  Analyzer plugged-in. 

Additional Information:  

• On a unit equipped with a Yorkguard IV, plugging-in a Yorkguard analyzer will cause the red light at the thermostat to flash a rapid, continuous pattern.
• This is a normal condition.