GE GFWS1700H - Fault Codes E66 to E67

– 66 –
NOTE: It’s important to note fault codes should only be used to help identify those components which require
testing. Never replace a part based solely on an fault code. The control can generate a false fault if the right
conditions exist . Use the code only as a reference and always check the component before replacing.
Fault Code Description Problem Possible Cause/Action
E66 Water
temperature
sensor open
Water temperature
sensor open.
• Check water temperature sensor - t07
• Check integrity of wiring and connections
between main control and water
temperature sensor.
• Check integrity of water temperature
sensor - replace if necessary.
E67 Water
temperature
sensor shorted
Water temperature
sensor shorted.
• Check water temperature sensor - t07.
• Check integrity of wiring and connections
between main control and water
temperature sensor.
• Check integrity of water temperature
sensor - replace if necessary.