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- LUCCA M58 by Quick Mill
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Lucca M58: Test the Fill Probe
Use these instructions to troubleshoot a constantly running pump, a pump that doesn't run, or a PID that fails to initialize.
Tools Needed:
- Phillips head screwdriver
- 12mm deep socket and ratcheting wrench
- Ratcheting wrench extension (optional)
1. Start with the machine off and cool, then remove the panels from the machine.
2. Identify the steam boiler fill probe.
3. Remove the electrical connection from the fill probe.
4. Use the 12mm socket to unscrew the fill probe from the boiler.
5. Re-connect the electrical lead to the fill probe and hold the fill probe against the boiler.
6. While continuing to hold the fill probe against the boiler, power the machine on.
If the pump continues to run, the fill probe may need to be cleaned or the fill probe circuit is faulty.
If the pump stops running, then the fill probe is working normally and the constant running condition is either caused by a stuck fill solenoid or a faulty pump circuit.
If the PID still fails to initialize, then either the CPU is failing to send power to the PID or the PID itself if faulty.