Infinity REU-V3232W /HD250E REU-V3232WC - 35 - Issue 1 - 8/09/03 ©Rinnai
17.Anti-frost Heater Circuit
a.) Disconnect relay connectors ( J
4
) and (J
5
)
and measure resistance between White and
WhiteW on heater side (water flow servo and
HW connection).
Normal: 408
Ω
If normal, proceed to b.
Faulty: Replace Valve Heater.
b.) Disconnect relay connector (J
4
) and (J
5
) and
measure resistance between Yellow and
Yellow on each conector on heater side.
Normal: 653
Ω
If normal, proceed to c.
Faulty: Replace Anti-frost Heater B (assy).
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