- Check equipment area for leaks
- Remove filter and clean
- Replace filter
- Lubricate O-ring on filter lid
- Check heater unions for leaks
- Check pump unions for leaks
- Check pump seal for leaks
- Check main circulation pump
- Check and test GFCI breaker
- Check bonding
- Check for loose connections on wiring harness and safety switches
- OHM heater out to make sure heating properly
- Check for correct power to heater (120V or 240V)
- Check pressure switch adjustment
- Check circuit breaker
- Check that system valves are correctly set
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