Mitsubishi FREQROL-2120 Error THM:: Motor thermal relay

Inverter · taken from the manufacturer’s manual, pages cited

Alarm codeTHM:

Motor thermal relay activates due to motor overload. The manual's first action is: “Lighten load.”

Model
Mitsubishi FREQROL-2120
Display shows
Motor thermal relay (THM:)
Type
Alarm code
Source
Manual p. 32

What THM: means

Motor thermal relay p. 32

Common causes

  • Is motor overloaded? p. 32

What to do

  1. Lighten load. p. 32
  2. Change motor/inverter capacity. p. 32

Before you service the product, read the safety instructions in the manual p. 7.

If THM: is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Mitsubishi service.

This page summarises what the manufacturer’s manual says about THM:; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Mitsubishi. Found a mistake? Report an error.