Coleman
Low Jet Pressure / Poor Circulation
Jets are weak or no water comes out of jets even though the pump is running.
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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
Clogged filter cartridge, Air lock in jet pump, Closed or partially closed slice valves, Debris in pump impeller
How to Fix / Troubleshooting
Safety first: Turn off power at the GFCI breaker before removing filters or opening unions.
- 1. Clean or remove filter: Take out the Coleman filter cartridge and rinse thoroughly. Test jet strength with the filter removed; if improved, replace the filter.
- 2. Open all jets and valves: Turn all jet faces fully open and ensure slice valves in the equipment bay are pulled up (open) and locked.
- 3. Bleed air from pump: Loosen the union on the suction side of the jet pump until air escapes and water appears, then retighten.
- 4. Inspect impeller: If pressure is still low, remove the pump wet end (with power off and spa drained below pump level) and check for debris in the impeller. Clean and reassemble.
- 5. Replace pump if needed: If the impeller and plumbing are clear but flow remains weak, the pump may be worn and should be replaced with a Coleman-compatible jet pump.
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Repair Difficulty
Medium
3/5
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