XSol Diagnostic System

RESISTANCE SENSOR DHW

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Disconnect plug from DHW sensor

Measurement:

Measure the resistance across the DHW sensor pins.
The resistance should conform approximately to the table below.

hs ace high lower panel down.gif

hs ace high e23602 thr dhw wires disconnected.jpg

@preddrs.gif

@pblackdls.gif

Temperature Range (°C)	Resistance Range
0°C to 10°C	20.0kΩ - 32.0kΩ
10°C to 20°C	12.0kΩ - 20.0kΩ
20°C to 30°C	8.1kΩ - 12.0kΩ
30°C to 40°C	5.4kΩ - 8.1kΩ
40°C to 50°C	3.7kΩ - 5.4kΩ
50°C to 60°C	2.6kΩ - 3.7kΩ
60°C to 70°C	1.9kΩ - 2.6kΩ
70°C to 80°C	1.4kΩ - 1.9kΩ
80°C to 90°C	1.0kΩ - 1.4kΩ
90°C to 100°C	800Ω - 1.0kΩ

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