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M015

Balboa M015: sensors may be out of sync

M015 means the sensors are out of sync. The guide says the temperature sensors may be out of sync by 2°F or 3°F, and it says to call for service. This wording is from Balboa guide 40985-G, 26 March 2014, for BP2500 and BP2600 with a TP800 or TP900 panel.

The temperature sensors MAY be out of sync by 2°F or 3°F.

Models this page covers: BP2500, BP2600, TP900, TP800

Do this first

  1. Power

    Stop and leave the sensors in place

    Do not unplug a sensor lead or swap the sensors. The only line under this message is call for service. Leave the housing closed.

When to call a technician

Call a technician now if

  • The breaker or the RCD trips when the pump is plugged in.
  • You smell burning, see melted plastic, or the water is too hot to touch.
  • The code comes back after one reset.

Also call for these, from the manual

  • Call for service for M015. This guide gives no home test for a sensor that may be 2°F or 3°F out of sync.

Questions

Does M015 already mean the sensors have failed?

The guide says they may be out of sync by 2°F or 3°F. M026 is the later message, when that fault has been established for at least 1 hour. A failed sensor circuit is M031 or M032.

Manuals we checked