A.O. Smith ZIP User Manual page 13

Tankless electric water heater
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Error Messages and Actions
Error Code
Reason
E1
Outlet temperature is over 65°C.
Malfunction of PCB
E3
Loose wire connections
Temperature sensor failure
Malfunction of PCB
Note: Call Customer Care No. 1800-103-2468/1860-500-2468.
Self-diagnostic / Action
Increase inlet water flow.
Call Customer Care Centre.
Call Customer Care Centre.
Call Customer Care Centre.
Call Customer Care Centre.
11

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