Specifications

TM031 Integrity 18, 20, 24, 26L Service Instructions REV: B
D.O.I: February 2008
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
46
Fault Finding Chart 3.7
3
.
7
Is error
code
16
displayed
?
**
Is the
Integrity inlet
water temp
>
77
ºC
?
YES
Is a
solar bypass valve
fitted
?
YES
Faulty solar bypass valve
.
Remove solar bypass valve
and fit a comparator
.
YES
Is a
Comparator
fitted
?
NO
Replace the comparator
.
YES
Replace the PCB assembly
.
NO
*
Is the
Integrity used as
an in
-
series gas
Booster
?
YES
Fit a comparator
.
NO
Is
the heater an
871024
-
model
?
Is the
Integrity outlet temp
set at
60
ºC
?
Set the Integrity
outlet temp to
60
ºC
NO
YES
**
Error code
16
will occur if the
Integrity heats the water to
20
º
above the set point
3
ºC
.
60
+
20
-
3
=
77
ºC
YES
Is the
resistance of the
proportional gas flow
regulating valve
normal
?
Replace the proportional gas flow
regulating valve
.
YES
NO
NO
NO
Is error
code
56
displayed
?
NO
Replace the PCB assembly
.
YES
NO
Replace the water body
assembly
.
YES
3
.
8
NO
Test
31
Test
15
Is the
PCB supplying
power to the
solenoid
?
Note
:
the bypass solenoid is activated only
if the set temperature is below
46
degrees
.
Outlet water
temp too high
Malfunction of
water bypass
solenoid
Mechanic
al Bypass
model
871024-B
871024-C
871026
871026-B
Is the heater an
871024-C or
871026 model?
*871018, 871020
871024, 871024-B
871026
model heaters are
unsuitable for use as
in-series gas boosters