Overheating Protection - EUROM SPV550i-Prof Instructions De Service

Overheating Protection

Your submersible pump has overheating protection. This device automatically
switches off the pump, if the engine becomes too hot. When the engine has cooled off
sufficiently, the pump will automatically switch on again.
However, overheating always has a reason: the impeller might be jammed, a bearing
might be worn out, etc. If the reason has not been remedied, overheating will reoccur
and this causes severe damage to your pump, if this process repeats itself too
frequently. Therefore, try to determine what the reason is and solve this problem. If
the pump has to be opened for this, you should contact your supplier or an authorised
professional.
Therefore, if too little monitoring was carried out during the automatic operation of
the pump, the pump can fail in spite of the overheating protection. At all times, the
user is responsible for monitoring!
Maintenance
You must switch off the pump and remove the plug from the socket before
you carry out checking or cleaning activities.
Your submersible pump hardly requires any maintenance. The only things you have to
do are:
 Regularly carry out a visual inspection. Are the pump, electrical cable, plug and
float switch, including its cable, not damaged? If you observe any damage, you
should contact your supplier or an authorised professional. NEVER try to carry out
repairs yourself and do NOT open the pump!
 Regularly check the operation of the float switch, certainly if you have installed the
pump for automatic operation.
 Regularly remove any deposit on the float using clean water.
 Using your fingers through the suction openings, regularly check whether dirt
(fibres, residue) has not accumulated around the vane. If so, remove this dirt. If
you do not manage, you should contact your supplier or an authorised professional
and let them open the pump and remove the dirt.
 If you use the pump regularly in different places, you should flush and rinse the
pump with clean water after each use.
 Make sure that the bottom of the pit or the tile on which the pump stands has no
mud and/or deposits.
 Make sure that the remaining water in the pump does not freeze. Let the pump
completely empty out by the time winter sets in and store the pump frost-free.
 Regularly check the insulation resistance between the turns of the pump (both
phases) and the housing (the earth wire) to determine that the insulation
resistance is not less than 1 MΩ. If not, you should contact your supplier or service
station and make sure that the required norm is achieved before you put the pump
into operation.
Maintenance to the pump should be carried out after 2,000 operation hours at normal
use. Do NOT carry out maintenance yourself, but contact an authorised service
station and check whether at least the following points were carried out:
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