OH2
Beachcomber
Equipment Bay / Heater Tube Overheat
Display shows OH2 or secondary overheat, spa shuts down quickly after starting.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Blocked equipment bay ventilation, Rodent nests or debris around heater, Heater running without adequate flow, Faulty secondary overheat sensor
How to Fix / Troubleshooting
Safety: Turn off power at the GFCI and allow the spa to cool.
- Inspect equipment bay: Remove the front panel and check for insulation blocking vents, debris, or nests around the heater and pumps.
- Ensure proper flow: Clean the filter and verify circulation pump operation.
- Ventilation: Make sure the spa is not installed in a tightly enclosed space without adequate airflow.
If OH2 recurs after clearing obstructions and confirming flow, the secondary overheat sensor or control board may require professional testing and replacement.
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Repair Difficulty
Hard
4/5
Required Part
Equipment bay overheat sensor
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