Fault Finding Chart 3.2 - Rheem 871018 Service Instructions Manual

Fault Finding Chart 3.2

3.2
Is gas available?
YES
Is the
gas pressure correct
at the burner test
point?
YES
Test 18
Is there
voltage at solenoid
valves 1, 2 & 3?
YES
Test 19
Is the
resistance of the
solenoid valves 1, 2 &
3 normal?
NO
TM031 Integrity 18, 20, 24, 26L Service Instructions REV: B
D.O.I: February 2008
This document is stored and maintained electronically by
NO
Is
there voltage at the
NO
gas inlet solenoid
valve?
YES
Is the
resistance of the gas
inlet solenoid valve
normal?
YES
Is there
voltage at the
YES proportional gas flow
regulating
valve?
YES
Is the
resistance of the
proportional gas flow
regulating valve
normal?
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled"
Test 14
NO
Test 15
NO
NO
Test 16
NO
Test 17
NO
YES
41
Open the gas isolation valve.
Replace the PCB assembly.
Replace the proportional gas flow
regulating valve assembly.
Replace the PCB assembly.
Replace the proportional gas flow
regulating valve assembly.
Set burner pressure correctly.
Replace the combustion chamber
front panel assembly.
Clean the burner.
Replace the burner change over
assembly.