Because I was Inverted
For this article, I will explain how to replace the main control board on a 38MARB ductless outdoor unit. The…
Author: Jonathon Pullen
Technical Services Manager
Gulf Coast District
Does the Defrost Board Have 24VAC?
The heat pump works in heating and cooling mode but it simply will not go into defrost mode. Why won’t…
What We Have Here… is a Failure to Communicate!
Have you ever found a communication fault or failure on an Infinity or Evolution system? Did you get a fault…
The Infamous E1: Part 2
E1 fault code on Ductless equipment is communication fault between the indoor and outdoor units.When the E1 code shows up…
The Infamous E1: Part 1
First, what is an E1 fault code? E1 is a ductless system communication fault between the indoor and outdoor units.…
CADM Fault Code 3
What is fault code 3 on the Comfort Alert Diagnostic Module (CADM) and why am I getting nuisance trips? CADM…
