Troubleshooting ThermaHeat Heater Pad Not Operating on Sensor Power Wire
Updated 11/13/2018 | Published 11/12/2018 >
Products Featured in This Question
Question:
Help! I got the ThermaHeat RV Holding Tank Heater Pad w/ Thermostat heater and I thought that I could splice my Red wire into the red wire same thickness coming to power my fresh water tank’s volume sensor and then ground off the other wire, but I don’t think anything is working. I have pictures attached.
asked by: Robert M
Expert Reply:
You are probably overloading the circuit with both the sensor and the ThermaHeat RV Holding Tank or Step Heater Pad # 277-000163 on it. We recommend connecting the heater pads directly to your battery for power so that it is the only thing on the circuit (unless you were to connect more than one heater pad).
If you want to be able to control when the heater pad is on separately from the thermostat then you can install the Universal-Design Rocker Switch # PK34360 on the power wire between the pad and battery.
Product Page this Question was Asked From
ThermaHeat RV Holding Tank or Step Heater Pad w/ Thermostat - 25" Long x 7-1/4" Wide
- RV Fresh Water
- Winterize
- Heating Pads
- Holding Tank Heating Pad
- LaSalle Bristol
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Video: A Closer Look at the Ignik Dual Propane Adapter Fitting
- Shop: Vehicle Engine Heaters
- Video: Hands-On with the ThermaHeat RV Dump Valve Pipe and Elbow Heating Pad
- Shop: ThermaHeat RV Dump Valve Pipe and Elbow Heating Pad - 13" Long x 3" Wide
- Shop: ThermaHeat RV Dump Valve Pipe and Elbow Heating Pad - 8" Long x 3" Wide
- Shop: ThermaHeat RV Holding Tank or Step Heater Pad w/ Thermostat - 25" Long x 7-1/4" Wide
- Shop: Kat's Heaters Thermal Battery Wrap for Series 26, 26R, and 70 Batteries - 125V - 60 Watt
- Video: What to Know About the Ignik Dual Propane Adapter Fitting
- Video: A Closer Look at the MB Sturgis Propane Adapter Fitting
- Shop: MB Sturgis Sturgi-Stay T-Fitting w/ Hoses - POL Valve - 1/4" FIF and Disposable Cylinder Port
- Shop: Ignik Dual Propane Adapter Fitting - Female Type 1 x Dual Type 1
- Shop: MB Sturgis Dual Propane Adapter Fitting - Male POL x (2) Type 1
- Search Results: trailer hitch
- Article: The 5 Best Trailer Drop Hitches You Can Buy
- Shop: Trailer Wiring
- Article: Holiday 2025 | RVers’ Favorite Gear & Road Picks
- Search Results: trailer tires and wheels
- Search Results: trailer wiring
- Article: Stability Control for Heavy Duty Vehicles
- Search Results: trailer lights
- Article: Holiday 2025 | Staff Picks for Real-Life Adventures
- Shop: Brake Controller
- Search Results: spare tire mount
- Article: Rooftop Cargo Carriers
- Search Results: suspension enhancement
- Search Results: trailer axles
- Q&A: Why Does the RV Holding Tank Heater Have a Separate Ground Wire and Not a 3 Prong Plug?
- Q&A: Will ThermaHeat RV Holding Tank or Step Heater Pad Help With Cold Weather Camping
- Q&A: Heating Pads for 50 Gallon Fresh Water Tank
- Q&A: Does RV Holding Tank Heater # 372HTH-A Have an Adhesive Backing



