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Truma Furnace / Heat E 5 H Error: Solved


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I'm posting this in case anyone else encounters this problem: We were traveling back east from Hohenwald in a driving rain storm through GA and upon setting up at the campsite could not get the Truma furnace to heat; the error E 5 H was displayed on the digital display panel. The Truma documentation that I have did not list this particular error code. The furnace had been operating flawlessly prior to the rain storm so I suspected that the problem had to do with moisture preventing the furnace from igniting.  I took a hair dryer and blew warm air up into the Truma exhaust vent to dry out any accumulated moisture and that fixed the problem.  If anyone has a  detailed description of the E 5 H error please post it here as I could not find a description online or in my documentation. 

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Tom & Doreen • 2023 Elite ll • Hull #1321 • 2023 Tundra Platinum Crew Max • Cheshire CT 

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Creative solution!  Glad it work out so well.

GJ

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TV:  2019 F-150 SuperCrew Lariat, 3.5L EcoBoost, Max Tow, FX-4, Rear Locker      OLLIE:  2018 OE2 Hull 342, Twin Bed.    OLLIE DYI’s:  BB LiFePO4's, Victron 712 Smart, 350 Amp Master Switch, Houghton 3400, Victron Orion DC - DC, 3000-Watt Renogy Inverter, P.D. 60-amp Converter, Frig Dual Exhaust Fans, Kitchen Drawer Straps.    TV DYI’s:  2 5/16" Anderson System, Timken Bearings, Nitto recon’s, Firestone Rear Air Bags, Bilstein 5100’s, Mud Flaps & Weather Tech all.

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Nice creative and thoughtful approach - good work.  

But, THIS kind of thing probably shouldn't happen in the first place.  I'd make sure that both Truma and Oliver Service know about it.

Bill

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2023 Ford F150 Lariat 3.5EB FX4 Max Towing, Max Payload, 2016 Oliver Elite II - Hull #117 "Twist"

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Thanks for the info! And quick thinking on your part to resolve it.

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2020 OLEII - Hull #634 aka-  “XPLOR” 

2021 F350 6.7 liter Diesel Lariat Ultimate Tremor aka- Beast

 

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Awesome troubleshooting, @Tom and Doreen!  Way to think through the issue and fix it!  Definitely let OTT and Truma know about your issue...

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Art, Diane, Oscar & Magnus (double-Aaarrf!)

  • 2022 TUNDRA w/Airlift Load Lifter 5000 kit/2017 LE II; Hull #226 "Casablanca", 12VDC Starlink kit, 3x Battle Borns; Victron Cerbo GX, SmartShunt, MPPT Solar Controller, & DC-DC Charger; HAM call-sign:  W0ABX
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  • 3 weeks later...

This is a follow-up to my earlier post regarding the E5H error.  Truma did respond with the following description for the E5H code:

"ionisation voltage recognized during standby mode. Could have been from a solenoid sticking for a moment due to moisture on the sensor, or a voltage spike".  

In my case I'm sure it was due to moisture as a result of traveling during heavy downpours.  

 

 

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Tom & Doreen • 2023 Elite ll • Hull #1321 • 2023 Tundra Platinum Crew Max • Cheshire CT 

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