Rheem RTGH-RH10DV - Page 23

23
Model T1-11:OverheatLimitSwitch
CheckPoint
(CircuitBoard)
CN11
Function
Thepartforautomaticallyblockingtheproductoperationwhenthetemperature
isbeyondtheset.
FailureEvent Overheatedwaterandburnertemperaturearenotdetected.
E󰘯ects Productdamageiscaused.
ErrorCode Er20,Er43
Diagnostic
①CheckforcontinuityacrosstheOverheatLimitSwitchbyusingamulti-meter.
②ChecktheDipSwitchsetting.
③Checkthenozzles.
Color/WireNumber
①Heatexchangeroutletpipe(Red/Red):Connector⑧,⑯
②Burnercase(Red/Red):Connector⑦,⑮
Chapter2ComponentsDescription
1
2
3
4
5
6
9
10
11
12 13
7
14 15
8
16
BurnerLimitSwitch
(302℉/150℃)
HighLimitSwitch
(203℉/95℃)