Circuit Diagram - A.O. Smith ZIP User Manual

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Error Messages and Actions
Error Code
Reason
E1
Outlet temperature is over 65°C.
Malfunction of PCB
E2
Electricity leakage
Power cord not pass through leakage
sensor
Malfunction of PCB
E3
Loose wire connections
Temperature sensor failure
Malfunction of PCB
Note: Call Customer Care No. 1800-103-2468/1860-500-2468.

Circuit Diagram

Figure 14
Brown
Red
Leakage
current
sensor
In order to avoid a hazard due to inadvertent re-setting of the Thermal cut-out, this Water
Heater must not be supplied through an external switching device, such as a timer, or
connected to a circuit that is regularly switched ON and OFF by the utility.
L
N
E
Blue
Yellow & Green
Terminal
block
Yellow & Green
Black
Thermal cut-out
(Hi-limit)
Black
Red
Increase inlet water flow.
Call Customer Care Centre.
Call Customer Care Centre.
Call Customer Care Centre.
Call Customer Care Centre.
Call Customer Care Centre.
Call Customer Care Centre.
Call Customer Care Centre.
Red
Black
Heating element
Yellow &
Green
TRIAC
T1
T2
Red
Black
G
Red
Red
Red
Yellow
Flow sensor
Black
White
Outlet water
White
temperature sensor
White
CAUTION
12
Self-diagnostic / Action
Red
White
Filter
board
Red
Red
Transformer
Yellow
Yellow
PCB board
SRC
LD
WAT
OUT

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