M035
Balboa M035: hot fault, pump stuck on
M035 is the hot fault. A pump appears to have been stuck on when the spa was last powered. The guide says to power down the spa and not enter the water, then contact your dealer or service organization. This wording is from Balboa guide 40985-G, 26 March 2014, for BP2500 and BP2600 with a TP800 or TP900 panel.
A Pump Appears to have been Stuck ON when spa was last powered. POWER DOWN THE SPA. DO NOT ENTER THE WATER.
Models this page covers: BP2500, BP2600, TP900, TP800
Do this first
-
Power
Power down and stay out
Power down the spa. Do not enter the water. Do not open the pack to free a pump. Contact your dealer or service organization.
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
- Contact your dealer or service organization while the spa stays powered down. A pump stuck on is not a filter clean.
Questions
Can I press a panel button and get back in?
No. This line does not offer a panel reset. It says power down the spa, do not enter the water, and contact your dealer or service organization.
Other codes on this panel
Manuals we checked
- TP800 and TP900 user interface guide (40985-G, 26 March 2014)
Balboa Water Group · Messages, pages 17–20 · Page checked 30 October 2026
BP2500, BP2600, TP900, TP800