2022 Micro Minnie FLX 2108TB heated underbelly

[dms7479]

Getting ready to go through a few days where the temp will be in the teens.

I read quite a few places that the FLX heater ducts into the underbelly. However, I had an error code (W 27 H) on the control panel indicating warm air outlet blockage.

I removed the duct panel under the fridge and there is only about an inch of ducting running to the outlet on the panel and that is it. I do not see how any of the heat could possibly get into the underbelly.

I removed the panel under the sink and put a thermometer into a hole that has some wires and the hose for the black tank flush and it reads 36deg and it is currently 33deg outside. I do have the heater running. So I am very skeptical and now worried I didn't do enough to prepare.

Taking advice of others I have heated water hose, running tank heaters, fresh tank reading 1/3. I had planned on letting the kitchen tap drip and was advised to leave grey tank open. I have full hook-ups.

I have read others spending even longer in lower temps taking very little prep with the heated hose with no issues but they also mentioned the underbelly was heated.

Any advice would be greatly appreciated.