On the covered GE hybrid heat pump water heater, F73 means GE states the condensate drain pan port is clogged. First, look for standing water in the drain pan and a blocked port. Then: clear the condensate drain obstruction following the owner's manual instructions.
Differential
Likely causes of “GE hybrid heat pump water heater code F73”, and how to tell them apart
- 1
Debris or a kink in a condensate hose
What separates it Water drips outside the unit and F73 shows
How to confirm The heat pump makes condensate that leaves through the drain hoses; a blockage backs it into the pan
- 2
Both drain ports blocked
What separates it Water runs down the outside of the heater
How to confirm The longer hose serves the lower port and the short one the upper port, so both need clearing
Try in this order
0 of 4 completedWhat to do first
ReversibleLook for standing water in the drain pan and a blocked port.
Correct only the documented fault domain
ReversibleClear the condensate drain obstruction following the owner's manual instructions.
Remove and clear each hose
ReversibleTake off each condensate hose and clear debris with a small wire or screwdriver, then check for kinks.
Clear the drain port
ReversibleUse the small wire to clear the port on the unit itself, refit the hoses and restart.
Evidence ledger
Sources behind this answer
Exact questions
Common questions
What does F73 mean on a GE hybrid heat pump water heater?+
GE states the condensate drain pan port is clogged.
Is F73 dangerous?+
It is a blocked-drain warning, not a fault in the heating. Clear it soon because trapped condensate can spill.