Rinnai Infinity 20e Installation And User Manual page 69

13. Hot Water Outlet Thermistor Circuit
Check Hot Water Thermistor if error code "32" is displayed.
Disconnect relay connector (B
When disconnected: resistance >1M
When short circuit: resistance > 1
Normal: Check Heat exchanger outlet thermistor
Faulty: Replace hot water outlet thermistor.
Normal
Temp.
11.4∼14 kΩ
Resistance
If normal proceed to Flame Rod circuit.
Faulty: Replace the Hot water Outlet Thermistor.
Note: For controller readout of thermistor temperature whilst operational refer maintenance monitor.
Disconnect relay connector (B
14. Surge Protector
Check the fuse.
a.) Unplug the power plug.
b.) Check whether or not the fuse (3A) x 2 has blown by measuring the resistance.
Normal: <1Ω
If normal go to step Electrical Fuse 13.
Faulty: Replace fuse/s (3Ax2). Check for a short next time it's turned off.
15. Electrical Fuse
a.) Measure voltage between Blue and Brown on the connector (F
Normal :AC 207~264V
If normal proceed to b.). (11~13Ω)
Faulty: Check if voltage on the fuse terminal is AC207~264V
b.) Measure voltage between white and white on the (F
Normal: AC207~264V.
Faulty: replace surge protector unit.
16. Transformer
Check for the transformer
a.) Measure the voltage between white and white on the transmission connector (F).
Normal: AC207~264V (11~13 Ω)
If normal proceed to b.). (11~13Ω)
Faulty: Check if the voltage on fuse terminals is AC207-264V.
Service Manual Infinity 16e and 20e Service Manual Infinity 16e and 20e
REU-V1616W/REU-V2018W/REU-V2020W
) and measure resistance White -White.
1
Ω
Ω
o o
15 C 30
6.4~7.8 kΩ
) and measure resistance White -White.
1
o
C 45 C
3.6~4.5 kΩ
)
2
).
1
- 29 -
o
60 C
2.2~2.7 kΩ
Issue 1 - 10/10/03 ©Rinnai