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When the wiring is hooked directly to the 240 v heater the heater is fine 240v at heater when thermostat is installed you lose the 240 at the heater but only have 120 v to ground on each line?
Wiki User
∙ 12y ago
It is normal to have 120 volts to ground on the supply side of the thermostat. There are two types of thermostats, a two pole and a single pole. On the two pole stat both legs of the 240 volt supply are opened. On a single pole stat only one leg of the 240 volt supply is opened. The other leg goes directly to the heater. Make sure that your thermostat is operating properly. Be it a two pole or single pole, do a continuity test to make sure that the stat is opening and closing the internal contacts. If you lose the voltage when the stat is in the line it sounds like the stat in not closing when the demand for heat is called for.
Wiki User
∙ 12y ago
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Does the ground wire from a 240 volt tankless water heater connect to the common wire?
Any ground wire has to be connected to an independent ground wire that returns directly to the distribution panel and not to the neutral of the circuit.
Can you use a double pole thermostat to replace a single pole thermostat?
Answer for USA, Canada and countries running a 60 Hz supply service.A double pole thermostat is a line thermostat and not to be confused with a low voltage stat. When the heating load has 240 volts for a supply voltage, both lines from the distribution panel are supposed to disconnect when the thermostat reaches the set point temperature. A single pole thermostat is only used on a 120 volt heater an the return leg from the heater is a neutral wire.A two pole thermostat can be used on a 120 volt circuit but a single pole thermostat should not be used on a 240 volt circuit. The reason being is that on a 240 volt circuit using a single pole thermostat, one "hot" leg doesn't get isolated from the heater and is always "hot" to ground. This is a shock hazard if you are working on the heater and depending on the thermostat as a disconnect from the distribution voltage.Before you do any work yourself,on electrical circuits, equipment or appliancesalways use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
How many watts of electric heaters set on low?
The wattage of electric base board heaters does not change because the thermostat is set on low. The wattage is a fixed value on the heater because of its internal resistance element. The thermostat set on low shuts off at a lower temperature than a thermostat that is set on high. It is the time interval that governs the amount of heat that the heater produces when the thermostat calls for heat. Once the room heats up to the temperature that the thermostat is set at, the heater shuts off. The thermostat is just a temperature switch.
What makes an electric baseboard heater tick?
The expansion and contraction of the heating element when the unit turns off and on. If you have ultra fine hearing and the thermostat is part of the baseboard heater it will be the bi-metal element in the thermostat.
Is your baseboard heater using power when a single-pole thermostat is set to low?
Your thermostat is just a temperature switch. A switch just breaks the circuit to stop the current from flowing. When you set a position on the thermostat you are telling the switch when to come on and when to shut off depending on the room temperature. If it is set to low then the base board heater will not come on until the low set-point is reached. When the room warms up to above the set-point the baseboard heater will shut off. If your concern is about a 240 volt baseboard heater and just a single pole on the thermostat do not worry. Breaking one leg of a 240 volt circuit will stop the current flow and the heater will not operate.
Where is the thermostat on a 1996 Nissan Altima gxe?
The thermostat on the Nissan Altima should be directly behind the alternator. This will be on the passenger side of the car and directly under a large heater hose.
94 Jeep GC blower runs then quits. Conected directly to battery blower runs fine. When it quits there is 12V on red to battery ground directly but no volts to black. Black to ground open. Why?
Problem solved: Bought a used heater control, installed it in minutes, and all is well.
Why would a hot water heater only running for about 30 seconds Anyone have any thoughts as to why?
either your hot water heater has been installed incorrectly or the thermostat has been set too low Sorry to butt in BUT there is NO THERMOSTAT on a hot water heater there is a AQUASTAT and sometimes the heater short cycles just to maintain the SET temperature
Why are we running out of hot water so soon?
Either the thermostat has been set too low, your hot water heater is not big enough, or your hot water heater has not been installed properly.
What does a thermostat do and how does a thermostat work?
the thermostat used to control the heater and after we select the four pole switch to some number the thermostat start connect the power to the heater at the same time the heater start to heat and when we select the switch to zero position the heater not work
Where is the freightliner m2 block heater plug?
If it's OEM installed, it should be directly under the door on the driver's side.
Your Marley electric baseboard heater will not shut of Replaced thermostat Newly installed this heater during your basement remodel?
If it has never worked properly, you probably have somehow connected it improperly. Contact a local electrician or qualified handyman to help wire the heater properly.
What does instally mean?
installed means to put in. I installed a heater in my car. I put in a heater in my car.
My 1997 mercury sable has no heat after replacing the thermostat?
The thermostat was installed backwards - this prevents any coolant from getting to the heater core. Take it out, flip it over and all should be warm and toasty. See "Related Questions" below for more
Why no heat after new heater core an thermostate motor runs hot no heat?
Are you sure the thermostat is installed correctly, or is it low on antifreeze? I would check the antifreeze level first.
What do i do the thermostat is opening the water pump is new but continues to over heat the heater core hoses get hot and the other hoses stay cold the housing gets hot but still overheating 2 5L s10?
The thermostat might be installed backwards. The thermostat will still work, but not as efficiently as if it were installed properly. It sounds like engine is still not receiving proper water flow. This is a common mistake.
What would make a hot water heater all the sudden get really hot?
Someone turned up the thermostat, or the thermostat has failed. The thermostat tells the heater what temp to keep the water at.
