CAUTION (may cause property damage) • DO NOT run the pump without water. If pump fails to prime within 30
seconds, turn it off. Check if there is an airlock, clogged plumbing, or closed
valve.
1. Turn the power supply “ON”.
2. If the pump has an air switch, depress the air button switch to turn the pump
“ON” or “OFF”.
3. Check plumbing system for leaks.
1. Fill the spa bath with water to the normal operating bath water level.
2. Depress the air button switch to turn the pump “ON”.
3. Depress again, to turn it “OFF”.
4. Be sure to drain the water from the spa bath after each use.
MAINTENANCE This pump does not require periodic cleaning or maintenance to perform
properly. It was designed and built to be trouble free. If, for some reason, the
pump leaks or fails to perform after completing the troubleshooting procedure
below, please contact your local Authorized Dealer for assistance. If it is still
under warranty, we will replace it free.
There is a possibility that under certain conditions, the Therma-Flo EHT front
discharge pump may experience issues with air locking. In order to allow the user
to easily eliminate the air lock, these pumps are equipped with an Auto Bleed
Valve to release air.
Follow these steps to activate the Auto Bleed Valve:
1. Drain the pump.
2. Remove the threaded cap with seal and the ball supplied on the pump.
3. Drill a small (approximate ly 2 mm) hole inside the cavity through the
pilot hole in the pump housing.
4. Replace the ball and cap with seal.
5. Connect one end of a small tube to the valve cap and the other end to
an appropriate drain.
6. Refill the pump.
Once completed, trapped air should be automatically released during filling.
See diagram on next page.
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