Rinnai HD200E REU-V2632WC, Service Manual

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Infinity REU-V2626W / HD200E REU-V2632WC - 32 - Issue 1 - 10/10/03 ©Rinnai
10. Hot Water Outlet Thermistor Circuit
Check Hot Water Thermistor if error code “32” is displayed.
Disconnect relay connector (B
5
) and measure resistance White - White.
When disconnected: Resistance > 1 M
Ω
When short circuit: Resistance > 1
Ω
Normal: Check Heat Exchanger Outlet Thermistor.
Faulty: Replace hot water outlet thermistor.
Note: For controller readout of thermistor temperature whilst operational refer
maintenance monitor. (Chapter 17, No. 2).
Disconnect relay connector (E
1
) and measure resistance White-White.
11.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: <1
Ω
If normal go to step Electrical Fuse 13.
Faulty: Replace fuse/s (3Ax2). Check for a short next time it’s turned off.
12.Electrical Fuse
a.) Measure voltage between blue and brown on the connector (F
4
)
Normal :AC 207~264V
If normal proceed to b.
Faulty: Check if voltage on the fuse terminal is AC207~264V
b.) Measure voltage between white and white on the (F
5
).
Normal: AC207~264V.
Faulty: replace surge protecter unit.
13.Transformer
Check for the transformer
a.) Measure the voltage between red and red on the transmission connector (F
5
).
Normal: AC207~264V
If normal proceed to b.).
Faulty: Check if the voltage on fuse terminals is 207~264V.
Normal
Temp.
15
o
C 30
o
C 45
o
C 60
o
C
Resistance
11.4∼14
k
Ω
6.4~7.8 k
Ω
3.6~4.5 k
Ω
2.2~2.7 k
Ω