Error Message – E1

Further Questions?

Miscellaneous questions
- What self-leveler should I use?
- Are Ultralight Insulation Boards Sound Proof?
- Why does my thermostat set into open window function and decreases my set temperature?
- Can my thermostat connect to Google Home?
- Should I insulate underneath my snow-melting system?
- How fast will my snow-melting system heat up?
- Are Warmup thermostats compatible with Matter?
- Can radiant heating be installed on a pool deck?
- Why is my Floor not Reaching Target Temperature?
- Why does my thermostat trip every time it reaches the same temperature?
- Why does my thermostat read a percentage (Regulator Mode)?
- Why does my floor heat unevenly?
- Why does my floor get warmer in some spots?
- When my screen goes dark, will my floor continue to heat?
- When I push the test monthly button on my thermostat, the screen goes red and tells me to call Warmup. Should I be worried?
- The Factory Joint Rule
- Is an electric floor heating thermostat the same as regular thermostats?
- How can I turn my system on or off completely?
- Does the 3iE have a battery backup?
- Can I use the 4iE to control my Air Conditioning unit (A/C)?
- Can I replace tile immediately when repair is completed?
- Can I use an uncoupling membrane with the NADWS cable ?
- Can I install my Warmup system directly on top of plywood?
- Can a wooden floating floor be installed directly over the Warmup NADWS system?
- How Long will my Electric Floor Heating System Take to Heat Up?
- Is There Enough Power Being Supplied to Operate the System?
- How do I upload a custom background to my 4iE?
- Connecting Your Foil Heating System
- Can I Cut the Electric Floor Heating System Wire if I Have too Much?
- What is the EMF level of Warmup cables?
- Should I use a 120V or 240V electric floor heating system?
- Can I upgrade to the 6iE?
- How much accumulation can a snow melting system handle?
- What is the maximum heating temperature for the FOIL system?
- How do you update software on a 4iE thermostat?
- How to change the location setting on the 4iE?
- Can carpet on top of floor heat be cleaned?
- How long does a snow melting system take to melt snow?
- Can I use area rugs with underfloor heating?
- Do I need to use the WiFi on my smart thermostat?
- Why is my thermostat screen going dark?
- Do towel warmers require any maintenance?
- What is an uncoupling system?
- How much does underfloor heating cost to operate?
- What does the DCM-PRO Warranty Cover?
- Will the membrane keep it’s decoupling capability over time?
- How to Unregister your 4iE Thermostat
- How to Edit Currency Type on your 4iE thermostat
- How to switch from Celsius to Fahrenheit (or vice versa) on your 4iE thermostat
- How to Edit Energy Cost on your 4iE thermostat
- 4iE Features Only Available through the MyWarmup Portal
- Does Warmup Underfloor Heating Comply with Title 24?
- Can my thermostat connect to Alexa?
- How do I turn off the Backlight on my 4iE Thermostat?
- What Does the Error Message on my Tempo Mean?
- Tire Tracks Installation: How Far Do I Space the Mats?
- Does the 4iE have a Battery Backup?
- Can the ETOG Sensor Lead be Extended?
- When should I check my resistance readings for the DCM-PRO cables?
- What is the DCM-PRO cable made of?
- Programming the Floor Temperature
- Initial Set up of the 3iE Energy Monitoring Floor Heating Thermostat
- How long does the thermostat keep my settings once the power has been shut off?
- My Thermostat is on but there’s Delayed Heating/No Heating Up at All
- Why are my floor heating system resistance readings not the same after several years?
- Installation of WIU over various sub-floor types
Installation
- Can you install Ultralight Insulation Boards under a Foil Heater System?
- What is the proper way to install Ultralight Insulation Boards?
- Can I install a towel warmer bar horizontally?
- Should I insulate underneath my snow-melting system?
- Can radiant heating be installed on a pool deck?
- Can sheet vinyl be used on top electric under floor heat?
- Can Warmup’s Foil be installed on stairs?
- What is the maximum thickness of tile over electric underfloor heating?
- Why does my floor heat unevenly?
- Why does my floor get warmer in some spots?
- What to do when Installing FOIL on a Concrete Slab ?
- Master/Relay (relay reading ER1)
- Installing the FOIL System Under Carpet
- How do turn on my thermostat unit?
- How do I check if the cable is working ?
- Can my sensor probe be extended?
- The Factory Joint Rule
- Can I swap my 3iE to a 4iE or Tempo?
- Can I install my Warmup system directly on top of plywood?
- Can I Have Another Thermostat as an Acting Relay?
- Can a wooden floating floor be installed directly over the Warmup NADWS system?
- What do I need to prepare for my electric floor heating project?
- Installing the Sensor Probe
- Is There Enough Power Being Supplied to Operate the System?
- Internet to 4iE: How to connect the 4iE to the Internet?
- General installation notes for the Foil Heating System
- Specialized installation – under Nailed Hardwood
- Foil Floor Heating Installation video
- Floor Heating Loose Wire Installation Video
- If I have too much mat or cable, can I cut it?
- Can I upgrade to the 6iE?
- How far away from the wall should floor heat be installed?
- Can I cross floor heating cables?
- How many packages of fixing strips do I need?
- Thermostat Mounting
- How long after flooring installation should we wait to use the heat?
- Can you install over tile?
- Can carpet pad be glued down?
- Can you trim the floor sensor?
- How do I register a product warranty?
- Does the membrane adhere well to Warmup insulation boards?
- Can I install directly onto durock or hardieboard?
- Does Warmup restrict tile size?
- How is the 4iE wired?
- What can I do if I do not have enough cable?
- Can I mount my thermostat anywhere?
- Is there a video guide for installing a towel warmer?
- How far can you space snow melting cables?
- Is there a video guide for installing the DCM-PRO system?
- What system works best with tile flooring?
- What system works best with laminate flooring?
- How do I test my heating cable(s)?
- How do you install Warmup’s single bar towel warmer?
- What is the difference between a Watch Dog and an Alligator?
- What is the diameter of the DCM-PRO cable?
- Is it possible to put less leveler over the membrane?
- Can the cable be spaced at 2 pegs?
- Does having a membrane change the cure time?
- Which thin set is recommended in Québec?
- What type of thin set can be used with the DCM-PRO system?
- Should I use primer?
- Should I leave space between membrane sheets?
- Mounting a 3iE/4iE thermostat in Canada
- Installation Reminders for the In-slab Cable
- How do I Mount my ETO2 Controller?
- How do I Mount my Tempo Thermostat?
- Tire Tracks Installation: How Far Do I Space the Mats?
- How Long Can You Extend the Lead on the Snowmelt System?
- How Do You Add a Room using the MyHeating App?
- Can the ETOG Sensor Lead be Extended?
- What are the Conduit Requirements when Installing a Warmup System?
- How Do I Mount a Warmup Towel Warmer?
- Do I need to connect my Towel Warmer to a thermostat?
- How do I know which voltage to run to my DCM-PRO cables?
- When should I check my resistance readings for the DCM-PRO cables?
- Can the Mirror Defoggers be installed in the shower?
- Where do I place the sensor probe when installing the DCM-PRO cables?
- Where do I install the DCM-PRO Factory Joint?
- How long is the cold lead on the DCM-PRO cable?
- Where do I run the cold lead and sensor probe during DCM-PRO installation?
- What is the correct DCM-PRO cable spacing?
- What is the best way to lay asphalt over a Heated Driveway?
- Mounting the 3iE Energy Monitoring Floor Heating Thermostat
- Installation of Snow Melting Cable under Concrete
- Installation of Snow Melting Mat/Cable under Asphalt
- Basic Installation of Snow Melting Cables & Mats under Asphalt, Concrete or Pavers
- Installation of Snow Melting Mats/Cable under Concrete
- How many heating systems can be connected to one thermostat?
- Basic Installation and Mounting the WUDG Floor Heating Thermostat
- Can I install a wooden floating floor directly on top of the cable ?
- How do you stick the insulation boards to the concrete subfloor?
- Do I need to prime the subfloor before installing Ultralight?
- What kind of primer do I use with ultralight?
- What kind of adhesive do I use with Ultralight?
- Can you self-level over Ultralight?
- How does Ultralight work?
- What is Ultralight made of?
- Is ultralight waterproof and sound proof?
- Can multiple layers of Ultralight be installed?
- How Big and How Heavy are Ultralight Boards?
- Installing insulation boards over a Wooden Subfloor
- Warmup Insulation Board Installation Video
- Insulation Boards: Preparing for the Installation of Floor Heating
- Make sure that the floor probe that came with the floor heating thermostat was installed and done so properly.
- Basic Installation of the In-slab Floor Heating Cable
- Should I install the WIU with the foil side up or down?
- Installation of WIU over various sub-floor types
- Can the cold tail lead of your Warmup indoor heating system be extended?
- Can the lead of your Warmup heating system be trimmed?
- Can baseboard heaters be controlled by the 4iE?
Programming
- How does the open window function on my Smart Thermostat work?
- How do I set a program using the MyHeating app?
- How to check my daily usage through the MyHeating app?
- How to perform a manual override using the MyHeating app?
- How to turn on frost protection using the MyHeating App?
- How do I change the language using the MyHeating app?
- How do I change my password using the MyHeating app?
- How do I set the time and date on my thermostat?
- What is the lock icon on the 4iE Smart Thermostat?
- Why can’t I program my thermostat to read air temperature?
- Is There Enough Power Being Supplied to Operate the System?
- Internet to 4iE: How to connect the 4iE to the Internet?
- How do I upload a custom background to my 4iE?
- 3iE Making Temporary Temperature Adjustments
- 3iE Basic temperature programming/Setting each day separately
- 3iE Adjusting the time
- Can I add a 4iE and a 6iE on my MyHeating account?
- Can the MyHeating app have multiple users?
- What are the dimensions of the 4iE custom background image?
- Can the 4iE be connected to Samsung Home?
- How to open the main menu
- How do I cancel an override?
- What does cancel heating off mean?
- How do I program my thermostat to stay on all night?
- How do I connect my 4iE to WiFi?
- What is a setback temperature and how do I set it?
- How can I adjust the thermostat temperature temporarily?
- How do I set the time and date on the 4iE?
- How can I tell AM from PM on the 4iE?
- What is a fixed temperature and how to I set or change it?
- How do I find the MAC address of the thermostat?
- How do Warmup thermostats work?
- How do I register a 4iE?
- How do I enter a space in my WiFi Password on the 4iE?
- Can towel warmer temperature be adjusted and how hot do they get?
- What are heating limits?
- How to: Initial 4iE Programming
- Can I turn my thermostat above 86°F?
- How do I get into my thermostat if I forgot the password?
- Control of Baseboard Heaters by the 4iE
- Should I perform a Reset or Power Cycle my 4iE?
- How Do I Set the 4iE to Program Itself?
- What Type of WiFi Does the 4iE Use?
- How-to: Programming Your Tempo Thermostat
- What is System Power on my 4iE and how can I edit it?
- How do I Set a Custom Program on my 4iE?
- Where Do I Find my 4iE’s Device Number?
- How Do I Enable to SmartGeo Feature on the MyHeating App?
- How to Set Up a Program using the MyHeating App
- Does the 4iE have a Battery Backup?
- Why won’t my background picture upload on my 4iE?
Wiring
- How do I wire a single towel warmer bar?
- How many relays can a single thermostat control?
- What if my thermostat screen is black and won’t turn on?
- How do I wire my snowmelt system to the ETO2?
- Can I swap my 3iE to a 4iE or Tempo?
- Can I Have Another Thermostat as an Acting Relay?
- What is the EMF level of Warmup cables?
- What if my thermostat screen is black and won’t turn on?
- Should I use a 120V or 240V electric floor heating system?
- Is the electric floor heating system wired correctly?
- If I have too much mat or cable, can I cut it?
- I nicked the wire slightly; do I need a repair kit?
- Can I upgrade to the 6iE?
- What is the lead length for mirror defoggers?
- Can you wire floor heat for 120 or 240 volt?
- Thermostat Mounting
- Can I use the 4iE with another type of heating?
- How far away from the thermostat can the relay be mounted?
- Can multiple relays be used?
- What is the snow melting cable rating?
- How is the 4iE wired?
- What gauge wire should be used?
- What is the largest breaker allowed by code to power a snow melting system?
- What is the difference between a Watch Dog and an Alligator?
- Ground Sensor ETOG-56 – Wiring Diagram
- Mounting a 3iE/4iE thermostat in Canada
- Installation Reminders for the In-slab Cable
- How to Check the Resistance Readings of your Electric Floor Heating System
- How Do I Wire my Tempo Thermostat?
- How Long Can You Extend the Lead on the Snowmelt System?
- Can the ETOG Sensor Lead be Extended?
- How Do I Mount a Warmup Towel Warmer?
- Do I need to connect my Towel Warmer to a thermostat?
- How do I know which voltage to run to my DCM-PRO cables?
- Where do I run the cold lead and sensor probe during DCM-PRO installation?
- Do you have to wire the floor sensor probe that comes with the 3iE thermostat?
- How to wire the 3iE Energy-Monitoring Floor Heating Thermostat
- ETOG Wiring
- How to wire the WUDG floor heating thermostat
- Basic Installation of the In-slab Floor Heating Cable
- Can baseboard heaters be controlled by the 4iE?
Preparing for your project
- How fast will my snow-melting system heat up?
- How many relays can a single thermostat control?
- Can sheet vinyl be used on top electric under floor heat?
- What do I need to prepare for my electric floor heating project?
- Installing the Sensor Probe
- How Long will my Electric Floor Heating System Take to Heat Up?
- Should I use Self-leveler or Thinset ?
- Connecting Your Foil Heating System
- How much accumulation can a snow melting system handle?
- What are the dimensions of Warmup towel warmers?
- Can I install floor heat under my tub?
- Do Warmup thermostats zone?
- Does every room with floor heat need its own thermostat?
- Can a gravel driveway be heated?
- What product do I use if I need 110V?
- Is there a maximum mirror thickness when using a mirror defogger?
- How many packages of fixing strips do I need?
- Do I need insulation?
- Can floor heating be used as a primary heat source?
- Can I heat under furniture?
- How thick is DCM-PRO?
- How thick is the foil?
- Should I use snow melting mats or snow melting cables?
- Are snow melting cables as effective as snow melting mats?
- What system works best with tile flooring?
- What system works best with laminate flooring?
- What is a foil electric floor heating system?
- How much does a Snow Melt System cost to operate?
- How do Floor Heating Systems Work?
- Can you feel FOIL under carpet?
- Can you hear FOIL under carpet?
- What is the diameter of the DCM-PRO cable?
- Calculating Heat Loss: How many BTU’s are in a watt?
- How do I change the probe setting on my Tempo thermostat?
- Does Warmup Underfloor Heating Comply with Title 24?
- How do I Mount my ETO2 Controller?
- What are the Conduit Requirements when Installing a Warmup System?
- When should I check my resistance readings for the DCM-PRO cables?
- Can the Mirror Defoggers be installed in the shower?
- How long is the cold lead on the DCM-PRO cable?
- Where do I run the cold lead and sensor probe during DCM-PRO installation?
- Which snow melting controller is best for me: DS2, DS5, DS8 or ET02?
- Do I Choose Snow Melting Mat or Cable for Driveway & Patio Heating?
- Can I use the WUDG with other floor heating systems?
- How do you stick the insulation boards to the concrete subfloor?
- Do I need to prime the subfloor before installing Ultralight?
- What kind of primer do I use with ultralight?
- What kind of adhesive do I use with Ultralight?
- Can you self-level over Ultralight?
- How does Ultralight work?
- What is Ultralight made of?
- Is ultralight waterproof and sound proof?
- Can multiple layers of Ultralight be installed?
- How Big and How Heavy are Ultralight Boards?
Troubleshooting
- What if my thermostat screen is black and won’t turn on?
- Ground Fault Error: What does this Mean if my Thermostat has “Ground Fault Error” on the Display?
- Why Won’t My 4iE Connect to the Internet?
- Why is my Floor Temperature Reading Incorrect?
- What if the Sensor Probe Reads Higher or Lower than Actual Temperature?
- What does “ER1” on the thermostat display mean?
- What does the ‘!’ mean on my 4iE Screen?
- What does it mean if my thermostat reads “overload” on this display?
- Un-Mounting Your Thermostat
- Thermostat Reads Error Message “ER2” on the Display?
- Should I use Self-leveler or Thinset ?
- Output Fault Detected on the Display
- Once a repair has been completed, can I replace the tile right away?
- My Floor has No Heat but There Are No Error Messages?
- Is it normal if I hear a clicking noise from my thermostat?
- If I’ve Registered an Account, Why Does my 4iE Still Have an ‘!’ on the Screen?
- Heater Error: What Does it Mean if my Thermostat Reads “Heater Error” on the Display?
- General installation notes for the Foil Heating System
- Connecting Your Foil Heating System
- Connected to the internet and getting the 4iE ! message?
- Can I Cut the Electric Floor Heating System Wire if I Have too Much?
- Are you getting a “Ground Fault” error after a few years?
- “ER1 Out” Thermostat Reading on the Display
- How to repair an electric floor heating cable system
- What if my thermostat screen is black and won’t turn on?
- I nicked the wire slightly; do I need a repair kit?
- Why is my thermostat flashing?
- Can I have a technician come to my home?
- How do I perform a GFCI Test on my thermostat?
- How does the infrared thermal camera work?
- Why does my thermostat say test monthly?
- What can I do if my old thermostat has stopped working?
- Why is my thermostat display sideways?
- Why wont my thermostat hold information?
- Why is my thermostat stuck on the Warmup screen?
- Is it possible to repair damaged underfloor heating?
- How do I conduct a floor probe test?
- How do I test my heating cable(s)?
- What is the difference between a Watch Dog and an Alligator?
- ER1 on the Thermostat Meaning
- Should I perform a Reset or Power Cycle my 4iE?
- Why is my 4iE Showing an ‘!’ on the Screen?
- How to Check the Resistance Readings of your Electric Floor Heating System
- What Does the Control Fault Error Message Mean?
- What Does the Error Message on my Tempo Mean?
- Where do I place the sensor probe when installing in-slab cable?
- What does it mean if my thermostat reads “output fault detected” on the display?
- What is causing my thermostat to keep tripping requiring that I press the reset button?
- What does it mean if my thermostat reads “ER 1 Out” on the display?
- How to work around a faulty ETOG sensor ?
- How do you find out if your ETOG sensor is defective?
- My Floor Heating System Keeps Tripping
- Error Message – E1
- Error Message – E0
- What if my thermostat says system is on however the floor is not heating up?
- Why are my floor heating system resistance readings not the same after several years?
- Make sure that the floor probe that came with the floor heating thermostat was installed and done so properly.