Remote Control - Rinnai Infinity 20e Installation And User Manual

17. Remote Control

Check the voltage between the 2-core remote control cable.
Measure the voltage between terminals on the remote control terminal (D).
Normal: DC 11~13V
If normal, replace the remote control after confirming that the cable hasn't been
damaged or shorted.
Faulty: Because normal voltage is not given due a short circuit, despite the PCB being in
normal state, check Water Flow Servo circuit.
If solution is not given from the above replace PCB.
18. Anti-frost Heater Circuit
a.)
Disconnect relay connectors ( F
on heater side (water flow servo and HW connection).
Ω
Normal: 53
If normal, proceed to
Faulty: Replace Valve Heater.
b.)
Disconnect relay connector (F
each connector on heater side.
Ω
Normal: 618
If normal, proceed to c.).
Faulty: Replace Anti-frost Heater.
19. Frost Sensing Switch
a.)
Disconnect relay connector (F
Ω
Normal: < 1
If normal, check wiring (AC240V circuit).
Faulty: Replace Frost Sensing Switch.
Service Manual Infinity 16e and 20e Service Manual Infinity 16e and 20e
REU-V1616W/REU-V2018W/REU-V2020W
) and (F ) and measure resistance between Yellow and Yellow
4 5
b
.).
) and (F ) and measure resistance between Yellow and Yellow on
4 5
) and measure resistance between Blue and Blue.
4
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