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”
4.3
Replace the PCB assembly.
Is the
voltage between
connector B10 & 11
normal?
NO
Test 28
Is the
voltage between
connector B9 & 10
normal?
YES
Test 29
YES
NO
Is
the preheated
water to the solar
bypass valve >
57ºC?
Read
maintenance
information 1y
1y = Water flow
detected by water
flow sensor
Water will be diverted by the
solar bypass valve. No water will
flow through the Integrity
therefore it will not operate.
Normal operation.
YES
NO
Is the water
flow more than 3
litres/min?
Is water
flowing through the
solar bypass valve to the
Integrity water
inlet?
Remove the solar bypass valve
and fit a comparator.
NO
NO
YES
Replace the PCB assembly.YES
Replace the water flow sensor. If
the fault persists replace the
water body assembly.
Is the
flow sensor turbine
jammed?
Free the flow sensor turbine.
Test 33
YES
NO
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