Rheem 862 27 Series User Manual

TM049 27L Continuous Flow Service Instructions
REV AL – Issued April 2019
This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”.
40
DIAGNOSTIC TEST POINTS (cont)
Measurement Point
Normal Value
Point to Check
No.
Connection
Wire Colour
23
D
BR1 – BL3 (outdoor)
16 - 22Ω
Transformer.
D
BR1 – BL3 (indoor)
10 - 14Ω
E
BK3 – Y11 (outdoor)
7 - 11Ω
BK3 – Y11 (indoor)
5 - 8Ω
BK3 – R6 (outdoor)
5 - 8Ω
BK3 – R6 (indoor)
3 - 6Ω
GY1 – GY7 (outdoor)
12 - 18Ω
GY1 – GY7 (indoor)
10 - 16Ω
THERMISTOR RESISTANCE CHART
Temp
°C
Resistanc
e
KΩ
Temp
°C
Resistance
KΩ
Temp
°C
Resistance
KΩ
Temp
°C
Resistance
KΩ
0
23.73
26
8.177
52
3.262
78
1.465
2
21.733
28
7.583
54
3.055
80
1.384
4
19.925
30
7.037
56
2.863
82
1.307
6
18.286
32
6.536
58
2.686
84
1.236
8
16.799
34
6.076
60
2.52
86
1.169
10
15.449
36
5.653
62
2.367
88
1.106
12
14.221
38
5.264
64
2.225
90
1.048
14
13.104
40
4.905
66
2.092
92
0.993
16
12.086
42
4.574
68
1.968
94
0.941
18
11.157
44
4.269
70
1.853
96
0.893
20
10.309
46
3.987
72
1.746
98
0.847
22
9.534
48
3.726
74
1.646
24
8.826
50
3.485
76
1.552
FAULT FINDING
When measuring resistance of a part, turn off the electric power and be sure to
disconnect the part completely before measuring (from connector or terminal).
Resistance checks are performed on the part while it is disconnected from the
control board.
“Live” testing to be conducted. Personal Protective Clothing (PPE) shall
be worn to reduce the risk of electric shock. Refer to Rheem Safety
Procedure on electrical testing.
All Molex connections only go to one location and fit one way. You do not need
to force a connection.
CAUTION: When performing maintenance and/or servicing the water
heater, wait for the water heater to become cool. Be careful to avoid injury
on the sharp edges.

Rheem 862 27 Series Specifications

General

Brand	Rheem
Model	862 27 Series
Category	Water Heater
Language	English