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Jeffrey Jackson MDAug 2, 2025
How to troubleshoot a Pahlen Aqua-Mex FE Lighting Equipment when the heat exchanger pump doesn't start?
- Mmarie91Aug 2, 2025
If the heat exchanger pump of your Pahlen Aqua-Mex FE lighting equipment doesn't start, first check the fuses in the electrical control box and verify the voltage matches the rating plate. Ensure the Aqua-Mex FE is receiving power, indicated by a dot on the display, and is switched on using the on/off button. Also, check the secondary circuit's flow, as the flow switch cuts out below 90 litres/min. Try setting a higher temperature. Examine the motor for blockages from deposits and manually check the rotor's movement with a screwdriver after fully unscrewing the air screw.