Rheem RTGH-RH10DV Service Manual page 72

72
Error code
Operation of product is stopped once detecting water leakage.The temperature of hot water is not
constant.
[Water Mixing Valve]
DHM Y Phase (black) : connector ①
DHM Y Phase (brown) : connector ②
DHM X Phase (red) : connector ③
DHM X Phase (orange) : connector ④
GND (yellow) : connector ⑤
DHM Position sensor (green) : connector ⑥
Flow2 sensor (blue) : connector ⑦
DC 14V (white) : connector ⑧
③ If above ①, ② operates normally replace valve
④ If above issues operates well replace Circuit Board.
Meaning
Water Mixing Valve Abnormality
(Manual restore)
Failure event
Check point
① Check error code sign after turning off and on the power.
Chapter 4 Troubleshooting
① Occurs manual restore error.
② Water leakage occurs around
the water mixing valve.
③ Abnormal valve operation.
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
Condition