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Initiation
Attention: Avoid overheating
Fill the unit completely with water before plugging it in or turning on the mains power supply .
For that purpose:
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Open the tap and wait until the water flows out from the spout without any air bubbles .
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Close the tap .
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Switch-on the mains supply .
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Hotrun is ready to use .
Maintenance
Due to its advanced design the Hotrun does not need any maintenance .
A damp cloth can be used for cleaning the cover .
Scouring and dissolving agents are not suitable .
Regularly clean scale from aerators and hose swivels .
Troubleshooting
Initial observations
The adequate supply and pressure of the water (min . 100kPa) .
- Make sure the cold water inlet and the hot water outlet are not connected in reverse .
- The main switch or circuit breaker is switched on .
- The fuse/circuit breaker is not blown/triggered .
- Flow rate from cold supply is adequate for the installed Hotrun .
Problem 1
- The Hotrun does not switch on when opening the tap fully .
Cause
Usually attributed to water supply problems . Ensure the pressure on the cold water supply is
more than 100kPa, while the Hotrun is in use .
- Too much back pressure in outlets or shower heads after the Hotrun causing lack of
pressure differential over the Hotrun (backpressure through the cold) .
- Wrong flow restrictor installed .
- Maximum temperature cut-out switches activated, due to air in the Hotrun not cleared
before switching on the electrical supply . Access to the thermal cut-out can only be
conducted by a suitable qualified tradesperson .
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