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Procedure 6
6. Check and change of ambient air temperature sensor
NTC thermosensor code:
G0030152;
NTC thermosensor model:
5K/L1200S
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 T1
4) On terminal CN3 (
Fig: pr.6.2)
, disconnect the cable of return gas
temperature sensor T1,
designated by Number “1” on a yellow ring
5) Pull the cable out
6) Replace with a new one on reverse order.
7) When mounting a new sensor into the holder (see
Fig: pr.6.1.),
assure
that the sensor is well fixed. Be sure that the position is the right one
as per picture Fig: pr.6.1.
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.6.1:
Fig: pr.6.2:
Procedure 7
7. CHECK AND CHANGE THE SOLAR SENSOR
See procedure 6
Ambient air T1 &
Ground
Ambient air
thermosensor T1
