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Coleman 9420-381 RV Thermostat Voltage Drop: Complete Repair Guide & Solutions
Propane Medium 45 minutes 79 👍

Coleman 9420-381 RV Thermostat Voltage Drop: Complete Repair Guide & Solutions

Pulled the same wire swap trick that fixed my old analog RV thermostat's voltage drop, but this new Coleman 9420-381 digital replacement is behaving completely different. Everything worked great all summer with the AC, but now that heating season is here, I'm having major problems.

The furnace keeps short-cycling terribly - the burner fires for maybe 3-20 seconds, shuts off, then the whole cycle repeats. I've already ruled out the furnace itself (replaced the board, checked sail switch and limit switch). Through testing, I discovered the furnace is steady at 13.4V, but when the thermostat calls for heat, the voltage it sends back slowly drops from 13V down to around 10V, then the burner shuts down.

If I short the two furnace wires directly, the furnace runs perfectly. I suspect the thermostat's solid state components are failing. I'm wondering:
1 Has anyone else seen this issue?
2 Are others using this 9420-381 thermostat without problems?

I really like the digital features, but need a reliable solution. …more
2001 Triple E Diesel Pusher Buying Guide: Critical Inspection Tips & Red Flags
Engine Easy N/A - informational 78 👍

2001 Triple E Diesel Pusher Buying Guide: Critical Inspection Tips & Red Flags

Standing next to my neighbor's flawless 2001 Triple E Signature diesel pusher makes the concerning issues on this one I'm considering buying even more obvious. Never owned a diesel coach before, only gas units. At 24 years old, what are the critical inspection points I should focus on? Should I be concerned about the age, or is Triple E known for quality construction that holds up over time? …more
Dometic RV Toilet Parts Diagrams: Complete Guide by Model Number
Plumbing Easy N/A 72 👍

Dometic RV Toilet Parts Diagrams: Complete Guide by Model Number

Halfway through this camping season, my Dometic RV toilet is eating through replacement parts way faster than it should, and I can't figure out which diagrams match my model number. I think I need a new ball seal and possibly a water valve, but I want to make sure I get the right parts for my specific model.

Where can I find official parts diagrams that show all the components? Also, I'm not even sure how to figure out what model toilet I have - is there a way to identify the model number? Any guidance would be really helpful since I don't want to order the wrong parts. …more
Hieha TPMS Review 2024: Complete RV Tire Pressure Monitor Test & Comparison Guide
General Easy 30 minutes install 70 👍

Hieha TPMS Review 2024: Complete RV Tire Pressure Monitor Test & Comparison Guide

Replaced my old TPMS last month but planning to install this Hieha system Saturday — should I worry about going budget for tire safety? I keep reading horror stories about tire blowouts and I don't want to risk my family's safety with unreliable equipment.

Has anyone actually used the Hieha brand long-term? I'm particularly concerned about accuracy issues and whether the sensors will actually alert me when there's a real problem. Are there better options I should be considering even if they cost more? I'd rather spend extra money upfront than deal with a roadside emergency later. …more
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