Er2
Coleman
Internal Control Pack Error
Display shows Er2 or ERR2, spa may lock up or not heat.
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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
Corrupted firmware, Failed control board component, Overvoltage or surge damage, Shorted peripheral device
How to Fix / Troubleshooting
Safety first: Turn off power at the GFCI breaker before inspecting internal components.
- 1. Power reset: Leave power off for at least 5 minutes to allow capacitors to discharge, then restore power and observe if Er2 returns.
- 2. Disconnect peripherals: With power off, disconnect non-essential components (ozone generator, auxiliary lights) from the control board. Restore power and see if Er2 clears, which may indicate a shorted accessory.
- 3. Inspect board: Look for burned components, swollen capacitors, or scorch marks on the Coleman control board.
- 4. Surge protection: If Er2 followed a storm or power surge, install a spa-rated surge protector when replacing the control pack.
- 5. Replace control pack: Persistent Er2 generally requires replacement of the control pack with a Coleman-compatible unit.
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Repair Difficulty
Professional Required
5/5
Required Part
Control Pack / Circuit Board
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