Bosch BSS250E-2 Installation And User Manual page 38

1. Remove the mains power supply, preferably remove the plug from the wall socket. Make
sure no other power source is feeding back through other connections.
2. Remove the 4 screw covers on each corner of the lid of the enclosure. This will require a
fine tipped tool such as a screw driver. Be careful not to damage the lid. Always press the tool
away from you to avoid injury if you slip.
3. Remove the 4 screws that hold the lid on.
4. Unscrew the damaged sensor from the terminal block.
5. Loosen the cable clamp for the sensor leads.
6. Carefully pull the wire back through the opening in the bottom case.
7. Thread the new sensor wire back through where the old one came from.
8. Place the wires of the new sensor into the terminal block where the old sensor came from
and retighten the screws.
9. Do not allow the sensor cables to come within 10mm of the high voltage connectors or
components inside the enclosure. Tighten the screws on the cable clamp.
10. Replace the lid, replace the 4 screws and tighten.
11. Push in 4 new screw covers available from your distributor. Note: there are
locating lugs to ensure correct orientation.
12. Reconnect the SolaStat-Eco and turn on the power.
Trouble Shooting
Symptom
No operation, No lights.
PWR light ON, pump not
running and
yet is sunny outside.
PUMP light is ON.
Cause
a. No power.
b. Power brown out.
c. Unit Damaged.
a. Pump faulty or disconnected.
b. Pump Timer has turned pump
off.
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Solution
a. Check mains outlet or Check
fuses.
b. Remove power while
brownout
condition is present.
c. Remove power for 10
minutes, repower
and see if unit is operating. If not
unit
needs repair.
a. See if pump has become
unplugged.
b. Wait one minute for pump to
restart.