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14.Electrical Fuse
a.) Measure voltage between Blue-Brown on the connector (F
Normal :AC 207~264V
If normal proceed to b.). (11~13
Faulty: Check if voltage on the fuse
terminal is AC207~264V
b.) Measure voltage between White-White on the (F
Normal: AC 207~264V.
Faulty: replace surge protector unit.
15.Anti-frost Heater Circuit
a.)
Disconnect relay connectors (F
heater side (water flow servo and HW connection).
Normal: 53
If normal, proceed to
Faulty: Replace Valve Heater.
b.)
Disconnect relay connector (F
connector on heater side.
Normal: 618
If normal, proceed to c.).16. Frost Sensing Switch.
Faulty: Replace Anti-frost Heater.
16.Frost Sensing Switch
a.)
Disconnect relay connector (F
Normal: < 1
If normal, check wiring (AC240V circuit).
Faulty: Replace Frost Sensing Switch.
REU-K2430WG-AK (Envirosmart
)
REU-K2430WG-AK
) and (F
) and measure resistance between Yellow- Yellow on
4
5
b
.).
) and (F
) and measure voltage between Yellow- Yellow on each
4
5
) and measure resistance between Blue-Blue.
4
- 25 -
)
2
).
1
Issue 1 - 16/12/09 ©Rinnai
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