XSol Diagnostic System

DHW SENSOR

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Disconnect yellow wires from DHW sensor
Ensure DHW is cool

Measurement:

Measure resistance across spade terminals of the sensor.
Resistance should conform approximately to the table below.

wc c1 inner front panel lowered.gif

wc c1 375696 thr dhw in situ wires disc.jpg

@preddrs.gif

@pblackdls.gif

Temperature Range (°C)	Resistance Range
0°C to 10°C	20.0kΩ - 33.0kΩ
10°C to 20°C	12.0kΩ - 20.0kΩ
20°C to 30°C	8.0kΩ - 12.0kΩ
30°C to 40°C	5.3kΩ - 8.0kΩ
40°C to 50°C	3.6kΩ - 5.3kΩ
50°C to 60°C	2.5kΩ - 3.6kΩ
60°C to 70°C	1.8kΩ - 2.5kΩ
70°C to 80°C	1.3kΩ - 1.8kΩ
80°C to 90°C	1.0kΩ - 1.3kΩ
90°C to 100°C	700Ω - 1.0kΩ

Note:
Click on resistance table to switch between table and graph view.