Fault Finding Charts 4 And 4.1 - Rheem 871018 Service Instructions Manual

Fault Finding Charts 4 and 4.1

4
Is the
Integrity used as
an in-series gas
booster?
YES
Are
Controllers
fitted?
Controllers must not be
fitted when an Integrity
is used as an in-series
gas booster. Remove
NO
Is a
solar bypass valve
fitted?
NO
Read
maintenance
information 3y
3y = Water temp
detected by water
inlet thermistor
TM031 Integrity 18, 20, 24, 26L Service Instructions REV: B
D.O.I: February 2008
This document is stored and maintained electronically by
4.1
Read
NO maintenance
information 1y
1y = Water flow
detected by water
flow sensor
YES
controllers.
18L Model
875024-B or 875024-C
What is the 871024, 871024-B or 871020
871024 or 871024-B
model
number?
871024-C or 871026-B 871024-C
water entering
the Integrity < or = 58ºC or
< or = the set temp
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled"
Is the water
flow more than 3
litres/min?
NO
Test 28
Is the
voltage between
connector B10 & 11
normal?
YES
Test 29
Is the
voltage between
connector B9 & 10
normal?
NO
Test 33
Is the
flow sensor turbine
jammed?
NO
YES
Is the
NO
- 2ºC?
YES
48
YES
NO Replace the PCB assembly.
YES
YES Free the flow sensor turbine.
Replace the water flow sensor. If
the fault persists replace the
water body assembly.
875024-B & 875024-C models are
18L Model is not suitable for use as
not suitable for use as in-series
in-series gas boosters
gas boosters.
4.2
871024-C models do not require a
871026-B & 871024-C models
solar bypass valve. Remove the
do not require a solar bypass
solar bypass valve and remake
valve. Remove
water connections directly to
bypass valve and remake water
Integrity.
connections directly to Integrity
Water will flow straight through
the Integrity and the Integrity will
not operate. Normal operation.
4.1
the solar