Specifications

TM040 16, 18 & 20L Continuous Flow Gas Water Heater Service Instructions
D.O.I: 2/06/2009
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
33
Fault Finding Tests 4 – 6
Test 4 - Diagnostic Point 3
Test 5 - Diagnostic Point 3
4
MAX.
3
R
43
MAX.
R
Conduct test with water flowing.
Using a multimeter set on the DC volts scale,
measure the voltage between 3 Red and 2 Black
on connector R.
Normal voltage should be between DC11 – 17V.
Conduct test with water flowing.
Using a multimeter set on the DC volts scale,
measure the voltage between 1 Brown and 2
Black on connector R.
Normal voltage should be between DC2 – 5V.
Test 6
Remove the flow sensor turbine. Refer to „Flow Sensor Turbine‟ procedure on page 51.
The flow sensor turbine should spin freely. Check for wear or blockage by foreign material such
as thread tape. The power must be isolated during water flow sensor removal.