Troubleshooting the Light on the Switch for a Water Tank Heating Pad Always Being On
Updated 11/08/2021 | Published 11/05/2021
Products Featured in This Question
Question:
I connected everything according to the diagram, but the light on the switch stays always on
asked by: Angel M
Expert Reply:
The first thing you should do is use a circuit tester like the Hook Probe Circuit Tester # PTW2993 to test the power at the ThermaHeat RV Holding Tank or Step Heater Pad # 277-000164. Start with the switch turned on and see if you have power, if you have power then turn the switch off and see if you have power. If you have power to the Heater Pad with the switch both on and off or you do not ever have power to the heating pad then you should double check the wiring. Since I do not know what switch you are using I am going to assume it is the Universal-Design Rocker Switch # PK34310, which is the most popular switch used for that Heater Pad. I have included a diagram of that switch to ensure things are wired correctly to the switch.
If you have power to the Heater Pad with the switch on and no power when the switch is off then the switch is working properly other than the light inside of the switch. It would be up to you if you wanted to replace the switch. If this is not the switch you have and cannot find the issue then please reach back out to me with the switch that you do have so that I can help you further.
(click to enlarge)
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Universal-Design Rocker Switch - SPST - On-Off - 12 Volt - 20 Amp - 4-Blade - Red Pilot Light
- Video: Universal-Design Rocker Switch Spec Review
- Shop: Illuminated Switch - On/Off - Water Resistant - SPST - Black
- Shop: ThermaHeat RV Holding Tank or Step Heater Pad w/ Thermostat - 25" Long x 7-1/4" Wide
- Shop: Firestone Fuse Circuit Tap Kit
- Search Results: rv fuses
- Shop: RV Holding Tank Heater
- Search Results: tank heater
- Search Results: terminal block
- Q&A: RV Holding Tank Heater Pad for 40 Gallon Tank
- Q&A: Pin Diagram for Universal-Design Rocker Switch # PK34310
- Q&A: Can Multiple RV Heater Pads with Thermostat 277-000163 Be Wired Together
- Q&A: In-Line Switch Recommendation To Install A ThermaHeat Heating Pad On RV Holding Tank
- Q&A: Is ThermaHeat RV Tank Pad Needed on All Water Tanks of an RV
- Q&A: Can the ThermaHeat RV Holding Tank Be Wired Straight To A Battery
- Q&A: Wiring Locations for 12 Volt 4 Blade Rocker Switch with Light
- Search Results: wire connectors
- Search Results: wire
- Video: Fifth Wheel Towing Made Simple with Daniel
- Article: Trailer Wiring Diagrams
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Shop: Trailer Wiring
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer tires and wheels
- Video: How to Choose a Trailer Brake Controller
- Article: How to Measure for Trailer Hitch Drop
- Shop: Suspension Enhancement
on Accessories and Parts
