Rheem 3 - Fault Finding Guide

24
FAULT FINDING GUIDE
* It is strongly recommended that any REMEDY be carried out by a qualified service
person *
Rheem Boiling Water Unit - Fault Finding Guide
Symptom Possible Cause Remedy
1
The unit does not
fill with water
There Is No Power Supply
There Is No Water Supply
The Filter Is Blocked
Electronic Controller Failure
Solenoid Valve Failure
Water Filter Is Blocked
Check The Electrical Supply
Check The Water Supply
Check The Inlet Strainer, Clean Or Replace
Test & Replace The Electronic Controller
Check Resistance Of Solenoid, Replace If
Broken
Check The Filter, Replace If Blocked
2
The unit fills with
water to low level
and does not heat
Thermal Cut Out Has Tripped
Heating Element Failure
Electronic Controller Failure
Thermistor Failure
Reset Thermal Cut Out
If The Heating Element Is Correctly Wired,
Check The Element Resistance. Replace If
Broken
Test & Replace The Electronic Controller
Replace Thermistor
3
The unit boils
continually
Low Atmospheric Air Pressure
Electronic Controller Failure
Thermistor Failure
Recalibrate The Unit
Test & Replace The Electronic Controller
Replace Thermistor
4 The unit overflows
Incoming Water Pressure Is Too
High
Solenoid Valve Failure
Level Probe Failure
Reduce Incoming Water Pressure
Turn The Unit Off. If Water Still Flowing
Replace Solenoid Valve
• Clean The Level Probe
• Check Condense Not Bridging Probe
• Check Angle Of High Level Probe
• Replace Probe
Also refer to Error Code Table on Page 11