my reliance heater gets super hot and goes off on high limit and have to push the reset button---how do i tell if its the upper or lower thermostat?
889473
that's great question...basically through all the research I did when my heater was doing that was that you can't really determine which thermostat is faulty without hiring a pro. That said, you could replace one and if that doesn't fix it, well, you have narrowed down. I just replaced both (not very expensive and easy to do it yourself) instead of hiring someone (much more expensive and will probably just replace both anyway). There was some opinion in there, I hope that it helps.
889474
I had the same problem. Since it really could be either thermostat, and for the price and time involved to change both I simply replaced both.
889475
It is best to change both, they are not expensive, and it will give you piece of mind
512273
I'll try to help. The heater has two modes. Either it is on for a pre-set time or it has a thermostat which determines when it is on based on the temperature of the room. When you set the thermostat it will initially show the temperature it is set to and then go to the current temperature. In this case it sounds like the heater is not turning on because it is set to maintain a temperature of 73 and it is already 77 in the room. The thermostat is on the heater so if the room is cold but the heater is in a relatively warm location (say in direct sunlight) then the thermostat will be fooled and you won't get it to perform the way you want. I put the heater in a relatively cold spot in the room and away from the sun and other heat sources. I hope this helps.
1572514
White is neutral, Red is hot. Double check to make sure you have a 208/240 volt electric heater, as opposed to a 120v heater.If you do have 208/240v heat, then you are not wired up for a 2-pole thermostat, which this is. You'll need a single pole thermostat, which is a sucky configuration and I'd strongly advise having an electrician to come in and rewire so that you can use 2-pole. But it sounds like you have 120V, which means you just need a 120V thermostat.
1228017
Most obvious thing: check the circuit breaker. It is probably not the same one that runs the pump. If you are not familiar with electrical troubleshooting, get professional help. Otherwise, make sure that the heater is getting electricity. If not, get professional help. Otherwise, shut the power off and check for continuity of each component. I'd start with the heating elements. Use your phone and take a picture of the wires on the elements. Remove the wires from the elements and test with an ohmmeter (if available). Each should read about 10 ohms. If either element is open, it will need to be replaced. Replace the wires. Next check the thermostat. Take a picture and remove the wires. Assuming the water temperature is low, the thermostat should be closed and your ohmmeter reading near zero. If it's open, it will need to be replaced. Replace the wires. Next, check the high temperature cut off. Take a picture and remove the wires. Like the thermostat, it should be closed. If it's open, it will need to be replaced. Replace the wires. If it still doesn't work, get professional help. Hope this helps, ..j
566034
My first guess is the thermostat. (Look for the dial). If you want your heater to stay on, turn the dial up just a bit. If you want it cooler, turn the dial down. If the heater is tripping a circuit or GFI in a nearby bathroom, unplug something. Other than that, I can't help.
24815
I also have my tank heater hooked up to a lo-ong extension cord. It has beautifully survived a very cold winter in Colorado. Check all your extension connections. Did you check your fuse box? Your electric outlet's reset switch?
1492923
Check the red over load button on the back of the heater. Check the power supply of the outlet plugged into. If that checks out ok, it is defective and you need to return it under warranty.
1226557
did you turn up the dial to maximum heating temp?.sometimes it gets turned down by error. IF it is all the way up...check the electric going to the heater...(that it is on) IF good..they it burned out....get a new one...
36622
No this is how the heater operates. Mine does the same thing.1) If set at 72F, it will heat up to 73, then stop. (It's still powered on, just not heating).2) The room drops to 71F. 3) Then once the display drops to 70F, the heater restarts.4) Repeat cycle.This cycle can take a long time for a larger room like a bedroom. It's a good design because limiting the ON/OFF cycles for heaters extends their life.Refer to the similar Question 1 for a similar response.
1051176
I did not do anything special. I unplugged it for a short time, switched it off, plugged it back in, and switched it to low. I haven't tried that one on high again since low seems to do the job of providing heat.
63
Sounds like it may be the electric control unit may be defective (have a short in it) If still under warranty call Co and request new one--it is the temp control as the unit itself can tlerate heat--mine will go above 600 deg. Good Luck, Anne
321319
If a your heater has a fan inside that comes on before it fires it is low nox. If no fan it is not low nox
676794
A slight variation in voltage under load may trigger the gfi thus shutting off your heater
1725274
There is an on/off rheostat dial on the front of the unit. This would be fine if you are running straight power to the heater. I have the heater set at its highest setting and my power comes from a wall thermostat. Hope that makes sense to you.
257497
the heater does not have "tip-over sensor". I just had my wife to check it, and it never turned off no matter how she turned it over and over.
783854
Try to keep the temp at number 2 1/2 and 3. Is the bottom heating rod working?
1755768
generally, thermostat set too high ,above180try turning the stat down.hope this helps.