Heatrae Sadia ElectroMax Installation & Servicing Instructions Manual page 32

Diagram 30 Water Heater Fault Finding
Master
SW I TC H O N
W ATER H EATER
& I LLU M I N ATED
N O T W O R KI N G
O FF PEAK ( LO W ER )
I M M . H EATER
BO O ST ( U PPER )
I M M . H EATER
W ATER FLO W
W H EN TAPS AR E
32 Installation & Servicing Instructions
I S D H W
N O
C H EC K ELEC TR I C AL
SU PPLY
YES
D O ES
G O TO O FF PEAK
N O
I M M ER SI O N H EATER
FAU LT FI N D I N G
O PER ATE
YES
D O ES
G O TO BO O ST
N O
I M M ER SI O N H EATER
FAU LT FI N D I N G
O PER ATE
YES
D O ES
G O TO W ATER FLO W
N O
PR O BLEM S FAU LT
FI N DI N G
O PEN ED
YES
G O TO EXPAN SI O N
YES
R ELI EF VALVE
FAULT FI N D I N G
N O
G O TO T&P R ELI EF
YES
VALVE FAU LT
FI N D I N G
N O
SW I TC H O FF W ATER
H EATER .C O N TAC T
H EATR AE SAD I A
Diagram 31 Water Heater Fault Finding
Off Peak (Lower) Immersion Heater
Faults
O FF PEAK ( LO W ER )
SU PPLY AT
I M M .H EATER NO T
O FF PEAK
O PER ATI N G
TERM I N ALS
SU PPLY AT
O FF PEAK ( LO W ER )
TH ER M O STAT
TERM I N ALS
N O TE:
D O NO T C H EC K ELEM EN T
R ESI STA N C E W I TH PO W ER
O N
TH ER M O STAT
SET TO A LO W
TEM PER ATU R E
TH E THER M AL
C U T- O U T
O PER ATED
I S 240V
C H EC K O FF PEAK
N O
ELECTR I C AL SU PPLY
I S O N
YES
I S 240V
N O
C H EC K I N TER N AL
W I RI N G
YES
R EPLAC E
N O
I M M ER SI O N
H EATER
YES
I S
YES
SET TH ERM O STAT
TO PO SI TI O N 4 TO 5
N O
H AS
YES
R E- SET THER M AL
C U T- O U T
N O
N O
R EPLAC E
TH ER M O STAT