IMMERSION TYPE NTC
Subject
Description
Part Function
It is the component measuring the water temperature in the tap
water circuit.
Impact in Case of Faulty
Operation
1- There may be a inconformity and hot water rippling because
of difference between the temperature set by user and actual
temperature.
2- The boiler does not function.
Primary Relevant Error
Codes
E18, F52
Troubleshooting and
Testing Method
Visual Inspection and Testing:
1- Checking whether cable connections are proper and without
damage
2- Checking whether there is any rusting, corrosion, or
deformation on the immersion probe
2- Resistance check
Maintenance Requirement
No special maintenance requirement
Maintenance Period
-
Testing Definition
Testing Method
Immersion Type NTC
Resistance Control
Cut off the power to the boiler. Remove immersion type NTC from the
boiler and keep them rest at room temperature for about 10 minutes for
cooling. Measure resistance between NTC ends. Check whether
resistance value conforms to the following chart.
Ambient
Temperature (°C)
Resistance measured on Surface Type NTC ends (kohm)
0-5
27,3 - 22,1
6-10
21,2 - 18
11-15
17,3 - 14,7
16-20
14,1 - 12,1
21-25
11,6 - 10
26-30
9,63 - 8,3
31-35
8 - 6,95
36-40
6,7 - 5,8
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