Espa
Thermal Overload Cycling
Pump runs but overheats and shuts off after 10–20 minutes, then restarts after cooling
Advertisements
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.
Advertisements
Possible Causes
Blocked motor ventilation, High ambient temperature, Overloaded pump due to high head, Failing motor windings increasing current draw
How to Fix / Troubleshooting
Safety first: Allow the motor to cool before touching. Turn off power while inspecting.
- 1. Clear ventilation: Clean dust and debris from the motor cooling fins and fan cover on the Espa pump.
- 2. Improve airflow: Ensure the pump is not enclosed in a tight box. Provide ventilation openings or a fan if necessary.
- 3. Check hydraulic load: Compare actual system head and flow with Espa pump performance data. Excessive restriction or long pipe runs may overload the motor; consider reducing speed (on variable-speed models) or adjusting valves.
- 4. Electrical check: Have an electrician measure running current. If it exceeds the nameplate rating even under normal load, the motor is deteriorating and should be replaced.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Espa motor with thermal protector
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements