Infinity REU-V3232W /HD250E REU-V3232WC - 32 - Issue 1 - 8/09/03 ©Rinnai
11.Hot Water Outlet Thermistor Circuit
Check Hot Water Thermistor if error code
32 is displayed.
Disconnect relay connector (E
1
) and measure
resistance White -White.
When disconnected: resistance >1M
Ω
When short circuit: resitance > 1 Ω
Normal: Check Heat exchanger outlet
thermistor
Faulty: Replace hot water outlet
thermistor.
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 (chapter 17) No. 2.
Disconnect relay connector (E
1
) and measure
resistance White -White.
12.Electrical Fuse
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.
Normal
Temp.
15
o
C30
o
C45
o
C75
o
C
Resistance
12.3 k
Ω
7.0 k
Ω
4.1 k
Ω
1.6 k
Ω
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