Sears Kenmore 630.13902 Manual page 40

Fault Diagnostics
Water filling failures
Circulating (heat pump)
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Digital display

E:14 Flow meter error
 Code not used (no flow meter)

E:15 Water in base
 Code not used (bases are open)

E:16 Volume flow without activation
 Code not used (no flow meter)

E:17 Volume flow too high
 Water volume too high, safety float
activated

E:18 Volume flow too low
 Water volume too low, heat pump
motor load too low.
 Check water supply
Digital display

E:20 Heater error
 Heater system check failed,
functional safety error.
 Replace heat pump

E:21 Blockage
 Heat pump
circulate and clear blockage.
 Replace heat pump
unable to