Recalls and Service Alerts

Furnaces - Air Conditioners - Heat Pumps

Demand Defrost Control Board on Heat Pumps12, 13 and 14 Seer

Type: Service Alert
Equipment: Heat Pump
Recall or Alert Date: 11-01-2006
Serial Number: ST-028-06
Brands Affected: York

Description of Problem:

Last heating season we had several calls on the part number S1-03101975102 Demand Defrost Control board used on the 12, 13 and 14 seer heat pumps. The scenario was a “Y” call in the heat pump heating mode the pressure switch safety circuit was closed but the unit would not run. In most all cases the Demand Defrost Curve Selection Jumper was in the “P” program position. Once the jumper was moved to the proper defrost curve for that unit the board would operate normal. Note: Once the Defrost Curve Selection Jumper is moved from the program or “P” position to a numbered position all (24VAC) power must be removed and re-applied to the board for the selection to be activated.

Affected Products:

12, 13 and 14 seer York heat pumps