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14
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Procedure 2
2. CHECK AND CHANGE OF LOWER TANK TEMPERATURE SENSOR T2
NTC thermosensor code:
G0030153;
NTC thermosensor model:
5K/L1200T
Tools:
Screw driver PH2; Pliers
Risk of electric shock!
Disconnect the HPWH from the main electric supply!!!
1) Switch off the HPWH
2) Open the PCB box as per procedure 1.
3) Tear up the cable bundle containing the cable of T2
4) On terminal CN3 (
Fig: pr.2.3)
, disconnect the cable of lower tank
temperature sensor T2,
designated by Number “2” on a yellow ring
5) Pull the cable out
6) Replace with a new one on reverse order.
7) When pushing a new sensor into the thermo-pocket tube (see
Fig:
pr.2.1.),
assure that the sensor is dived at 420mm measured from the upper
edge of thermo-pocket tube. Be sure that the position is the right one as per
picture
Fig: pr.2.1.
8)
Assemble everything at the reverse order, do not forget to tighten again the
cables into the bundle. Assure that no cables are in contact with moving parts
or sharp edges.
Fig: pr.2.1:
Fig: pr.2.2:
Fig: pr.2.3: Fig: pr.2.4:
T3
T2
T2
Lower
T3
Upper
Lower T2 &
Ground
Terminal
CN3
