What to do if the HB-THERM THERMO-5 HB-100Z1 system pressure is too low?
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joshua76Aug 1, 2025
If the HB-THERM Control Unit displays a system pressure that is too low, or if the initial filling time or filling time is exceeded, several factors could be at play. The issue might stem from a large external volume. Additionally, low mains water pressure could be the cause, so increasing it may resolve the problem. Ensure the cooling water or system water connections are correctly made, opening any cut-off valves if present. Check quick-release connectors for blockages, cleaning or replacing them as needed. Inspect hose connections for leaks and replace them if necessary. Other potential causes include a defective filling pump (repair or replace it) or a pressure sensor that needs calibration or replacement. Acknowledge alarm for initial filling time exceeded.
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Karen MitchellAug 5, 2025
Why does my HB-THERM THERMO-5 HB-100Z1 show an undercurrent or overcurrent error for the heater?
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Teresa SandersAug 5, 2025
An undercurrent or overcurrent error for the heater in your HB-THERM Control Unit can occur for several reasons. First, ensure the unit is connected to the correct mains voltage. Incorrect or broken plug connections can also cause this issue, so inspect and correct them. A defective semiconductor relay may be the culprit, requiring replacement. Lastly, the heater itself might be defective, necessitating repair or replacement.
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Brian GonzalezAug 9, 2025
How to fix 'No flow rate available' on HB-THERM THERMO-5 HB-100Z1?
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Luis HarveyAug 10, 2025
If your HB-THERM Control Unit displays 'No flow rate available' or indicates a flow rate that is too low, there are several possible causes. Start by checking the filter in the main or return line for contamination and clean it if necessary. If the flow rate is too low, consider increasing the 'Flow rate internal min.' parameter. Also, inspect quick-release connectors for any blockages, cleaning or replacing them as needed. Make sure that hose connections are not kinked, and rectify any kinks. Finally, check the consumer for blockages and clean it as necessary.
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ohodgesAug 14, 2025
What to do if HB-THERM Control Unit shows overtemperature circuit error?
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Mallory BrownAug 14, 2025
If your HB-THERM Control Unit is showing an overtemperature circuit error, it could be due to several reasons. Ensure that the cooling water connection is properly made. Check cooling valve 1 and cooling valve 2 for defects, and replace them if necessary. The temperature sensor may also be the cause, and you may need to calibrate or replace it.
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jerryguerraAug 18, 2025
Why is the HB-THERM Control Unit showing an upper temperature deviation?
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hgarrettAug 18, 2025
An upper temperature deviation on your HB-THERM Control Unit can arise from a few potential issues. First, verify that the cooling water or system water connection is correctly made. If the connection is correct, check the 'Upper dev. nominal/actual' parameter and increase it if it's set too low. Finally, the regulation parameter might not be optimally set, requiring you to optimize it.
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Joseph PriceAug 22, 2025
What causes undercurrent or overcurrent pump errors on HB-THERM THERMO-5 HB-100Z1?
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Mary CervantesAug 22, 2025
An undercurrent or overcurrent error related to the pump on your HB-THERM Control Unit can be attributed to a couple of factors. First, ensure that the unit is connected to the correct mains voltage. If the voltage is correct, the pump itself might be defective, requiring repair or replacement.
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Mitchell DaughertyAug 27, 2025
What causes a lower temperature deviation in the HB-THERM THERMO-5 HB-100Z1?
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hrussoAug 27, 2025
A lower temperature deviation in your HB-THERM Control Unit can stem from several sources. The 'Lower dev. nominal/actual' parameter might be set too low, so increasing it could resolve the issue. The regulation parameter might also be not optimally set, and therefore require optimization. Check cooling valve 1 and cooling valve 2 for defects, replacing them if necessary. Insufficient heating capacity could also be the cause, so verify the required heating capacity.
Provides a chart linking faults (e.g., Undercurrent heater, Overtemperature circuit) to possible causes, rectification steps, and responsible personnel.
Lists steps to safely restart the system after a fault has been resolved: reset emergency off, acknowledge fault, ensure safety, and follow operating instructions.
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