Mendota FV44i LP Gas fireplace insert won't stay on, it cycles off after awhile, then on

Question

I have it set on standing pilot, which stays lit.  The unit is only 2 years old and was working fine a few weeks ago.  Temperature outside is above 50 degrees, and our main gas hot air heat is working fine.  No soot build up around thermocouple which was my first guess.  The remote control does not seem to be sending out any signal when this is happening either. The fire seems to go out at random times, sometimes after 15 seconds or less, or after several minutes, but will come back on after less than a minute later usually.   Any other ideas?

user48697 · Answer

If remote is in 'smart' mode, it will cycle the flame to maintain the selected temperature. If remote is too near the fireplace, it will heat up quickly, turn off, cool and turn back on for a little while until it heats back up. Try moving the remote further from the unit while it's lit.

Answered by user48697 on February 12, 2021

Myron Pochynok · Answer

I took 6 years for my unit to start acting up, this is what I did. Remove the log set and with a small wire brush clean the flame sensor loop or post just to the right of the pilot, the powdery residue impedes the sensors ability to detect a full flame and so the unit shuts down as a safety feature. Brush the sensor post or loop until you see bare metal , it doesn't take much to clean it. Brush the burner ports in the area a little to remove any deposits as well. Test it to make sure it lights and holds, when it cools put the log set back.

Answered by Myron Pochynok on February 12, 2021

Mendota FV44i LP Gas fireplace insert won't stay on, it cycles off after awhile, then on

2 Answers

Add your own answers!

Ask a Question