Troubleshooting A Fogatti Tankless Water Heater In Frost Protection Mode
Products Featured in This Question
Question:
Hi! I just bought a new Fogotti water heater and it has been working fine, except it got real cold last night and now no water comes out of the hot tap in my trailer. I have cold water from the cold tap, but no water comes out the hot water side. The unit kicks on just fine in the frost protection mode, and there are no error codes. Ive tried heating up the pipes after the water heater with a hairdryer with no luck. Ive got plenty of propane, I certainly wouldve noticed if my furnace went cold last night, as it got to 10°. Im a full timer in Washington, so winterizing is not an option for me. Help!
asked by: Ellie S
Expert Reply:
RV water heaters are exposed to the outside since the only thing blocking the outside climate is just a thin metal access door with zero insulation. The Fogatti Tankless Water Heater # LSB64FR and all other brands aren't designed for use below freezing so you'll keep running into this issue unless you can find some sort of way to insulate the area around the unit outside, but would most likely run into exhaust issues.
The only way to get the unit out of frost protection mode would be to warm the pipes back up to an acceptable level and then pull the fuse located under the on/off switch on the unit for a few minutes to allow the control panel to fully reset.
Since you're full timing in a cold climate your best option would be to install a water heater like the # EX93FR, which can be inside the trailer to keep it warm enough for use. This unit isn't great for multiple points of use so if you wanted to be able to keep both units and use the # LSB64FR in warmer weather and the # EX93FR during freezing cold weather you could install a diverter for your water lines and propane line to transfer back and forth from either unit. This would be quite a bit of work but would allow you to winterize the # LSB64FR in freezing conditions.
Angela H.
1/20/2025
My hot water tank is freezing and won’t work! I have tried to contact Fogatti without success. 0/0 recommend.
Kevin C.
1/21/2025
Angela H.
1/21/2025
I have mine mounted on the side of the house. It is not an RV. Do you have recommendations on buying the cover for exposed pipes?
Kevin C.
1/22/2025
Continue Researching
- Shop: B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 25,000 lbs
- Shop: B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 20,000 lbs
- Shop: Curt Q20 5th Wheel Trailer Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 20,000 lbs
- Shop: Curt A20 5th Wheel Hitch w/ S20 Slider for Chevy/GMC Prep Package - Dual Jaw - 20K
- Shop: B&W Patriot 5th Wheel Trailer Hitch for Chevy/GMC - Dual Jaw - 16,000 lbs
- Shop: B&W Patriot 5th Wheel Trailer Hitch w/ Universal Install Kit - Dual Jaw - 18,000 lbs
- Video: B and W Companion OEM 5th Wheel Hitch Installation - 2019 Chevrolet Silverado 3500
- Video: B and W Companion OEM 5th Wheel Hitch with Slider Installation - 2017 Chevrolet Silverado 3500
- Shop: B&W Companion OEM 5th Wheel Hitch w/ Slider for Chevy/GMC Towing Prep Package - Dual Jaw - 20K
- Search Results: fifth wheel hitch
- Shop: Suspension Enhancement
- Q&A: Is The Placement OF GM's OEM Puck System Supposed To Sit Behind The Axle
- Q&A: Recommended RV Water Heater That Works Well in Freezing Temperatures
- Search Results: silent hitch pin
- Search Results: anti rattle hitch pin
- Search Results: bx88417
- Search Results: anti rattle hitch
- Search Results: locking hitch pin
- Search Results: blue ox tow bar
- Q&A: Troubleshooting A Fogatti Tanjless Water Heater That Goes Cold But Doesn't Have An Error Code
- Q&A: Does Truck with 6-1/2 ft bed Have to Use Slider Hitch for Turning Clearance with Fifth Wheel Hitch
- Shop: Trailer Hitch
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
- Article: Trailer Wiring Diagrams
- Shop: Trailer Wiring
- Video: Choosing the Right Fifth Wheel Hitch For You
- Article: Gooseneck to 5th Wheel Adapters
- Video: Review of Andersen 5th Wheel Gooseneck Adapter - Aluminum Ultimate 5W Connection 2 Gooseneck - 3220
- Q&A: How to Determine Correct Height Setting for 5th Wheel Hitch
on RV Water Heater
Monty
1/9/2025
I have done all of what you mentioned and still won't operate. It reads out the water temp and will increase and decrease but won't fire up. The upper left icon pointer on remote seems to do nothing. What ya think Kevin?