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Cadet heater x102 tunning itself off before reaching temp set

I think the high temp heat sensors are tripping , the unit will start back up on its own after a while then shut off again. can you replace these little sensors mounted infront of the heating coils ? ....if so where can I get then for this model.......... THANKS...Walt

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  • 26 Answers

SOURCE: Pilot goes out after heating cycle

Check regulator on the unit.
Check pilot unit on the heater
use soapy water to check for leaks if see bubbles turn off main gas supply valve.
always turn off gas supply before any checks or repairs are made
when all else failes call your local gas provider to check heater and gas supply

Posted on Dec 16, 2008

  • 3 Answers

SOURCE: electric furnace/heater pump/fan unit won't shut off

There are dip switches on the main board.. When you remove the lower panel on the air handler there are instructions to where the dip switches should be for your units fan control. if the switches are in the correct configuration.. The Thermostat may be malfunctioning or not wired properly. and last.. and most expensive.. the motherboard may also be failing.

Posted on Jan 12, 2009

  • 2398 Answers

SOURCE: shuts off when switched to low and smells when running.

clean the burner and the orifice you can use a air line or blow off a vacum cleaner

Posted on Feb 07, 2009

  • 2398 Answers

SOURCE: Gas heater shuts off & won't come back on

sounds like the thermostat replaceing it should help you could try cleaning the old one they can get dust it them

Posted on Feb 28, 2009

Therinnaiguy
  • 1420 Answers

SOURCE: Rheem RHQA Heater:Blower works but no heat.

Is there a setting on the thermostat for Auto or Fan? If so, make sure it is in the Auto setting. You will have a contactor that turns on the elements and a relay for the fan. Follow the wiring diagram to see which relay energizes the fan then unplug it to see if the fan stops.

Posted on Nov 03, 2009

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1 Answer

Is it possible to clear an error 4 (over heat sensor tripped)?


I wouldn't think that sensor would trash at 190 but if the manual says overheated sensor--I'd go with that and replace it providing it's not an exotic priced sensor---the sensor as far as I know should be independent from the gas valve but since I don't know what make/model/type/age of unit my answers are generic good luck Happy Rabbit

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Rheem split system condenser high pressure limit/safety needs resetting frequently before it reaches the set temp of 76 degrees faren. what's wrong and what do i need to check?


Is the outdoor fan running? The fan cools the coils and compressor, therefore keeping the high pressure low enough to run. Either the fan is not working or its not spinning fast enough. Check the capacitor, or just replace it.

Apr 18, 2017 | Heating & Cooling

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I have a powerstar ae115 water heater that is 3 years old. The thermal cutout onthe left side keeps tripping. after shutting off the shower the temp on the top of the unit is reaching 185*f. I have...


You've done the required first-step troubleshooting and maintenance.
If thermal cutout keeps tripping, and unit is actually reaching 185, then something is wrong with wiring, temperature sensor, gas valve, or PC board. Or combination of factors.
Call service technician, and open following link for some Bosch tankless resources including Bosch contact information:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Jun 26, 2011 | Bosch PowerStar AE115 Tankless Water...

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Pentair MasterTemp 400 Heater Will run fine for about 1-2 hours then the service heater light comes on and the control panel is completely locked up. I can only reset by cutting power to the machine, where...


This reminds me of some of the High temp sensors ive replaced. I would start with checking the pumps flow to the heater. Make sure there are no abstructions and at least 35 GPM (gallons per minute) running to the heater. If your flow is too low, you will trip the high limit sensor after a short while.
This could also mean you need to clean out the heat exchanger. When an exchanger gets dirty, it blocks the flow of water, slowing it down and "super heating" itdue to the water being in contact with the exchanger for too long. This will also trip the high limit and call for service.
If both the above items check out, contact me @ adamh@newconceptchem.com and I will guide you further.

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My spaform hot tub will not reach its temp ..we set the temp but it does not heat . the heater seems to be sound ?


if the heater tests out good, you most likely have a problem with the water temperature sensor. Make sure that the temp readout matches the actual water temp.. Sometimes the heater will think that the water is up to temp because the temp sensor is feeding the circuit board bad info. Check sensors, replace as necessary.

Sep 15, 2010 | Pool & Spa

1 Answer

I have a dyno glo rmc-fa100dlx forced air heater. It will light and work for a few minutes, up to about 5, then it will stop heating and the fan will keep blowing. any ideas? thanks!


If the unit comes on and runs but then shuts down, that sounds like an indication of a high limit trip.

Most, if not all, furnaces have high limit switches that keep a constant check on the temp inside the furnace or air handler. On most systems, once this high limit switch has been made (got to hot), the limit switch breaks control voltage to the heating device (strips, gas, fuel, etc.etc..). The blower motor continues to run until the high limit has dropped in temp and reset itself.

On some models, the high limit is a manual reset, meaning you need to reset the switch yourself or shut the unit off and then back on to reset it.


Check all filters and replace as necessary. Check the coils and fan blades for dirt build-up and cleanliness. Check motor belt (if applicable). If all these fail to solve the problem, then your issue either lies within the blower motor itself not moving enough air for proper heat transfer. Or the high limit switch itself is failing.

Jan 09, 2010 | Heating & Cooling

1 Answer

My goodman furnace model gms95 has gone ape. when the thermostate calls for heat, the furnace kicks on and starts to cycle but it wont stay on long enough to reach the set temp, before it kicks off. and it...


It sounds like your furnace is cycling off because your high temperature limit is tripping. This could be caused by a restriction of intake or outlet airflow. First thing to check is your intake air filter, clean or replace as needed. If that doesn't help, make sure your warm air registers are open, a rule of thumb is at least 60% of the total registers need to be open for adequate airflow. The high temp limits will reset themselves after they cool so that would explain it taking a few "cycles" to reach desired temperature. Good luck and please rate my answer if it was helpful.  

Jan 05, 2010 | Goodman Heating & Cooling

2 Answers

Vornado heater doesn't work on high setting but only at low setting


Dust on the inside of the unit can cause the overload switch to shut many vornados down. Blowing the dust out of the unit with compressed air or a blower may help.

Another problem that causes vornados to stop working (light on - no heat no fan) is when one of the bearings starts to go bad in the unit. This causes the fan to be slower and less effective and the unit’s inability to move the heat away from the thermal overload switch again causes it to shut down.

Though you could remove the front and rear bearings and try to get replacements if it's even replaceable ... Once the bearing starts to go bad there is little that can be done ... HOWEVER, here is one solution to get more life out of the unit.

First, use a blower to blow all the dust out of the unit.
Then, because it is typically the front bearing that goes bad first, lay the vornado on it’s back (so the unit would be blowing air up toward the ceiling), this will relieve the front bearing somewhat and rely more on the rear bearing which tends to last longer.

The vornados I’ve had are all thermistor units ... that is, they don’t just turn on and off when the set temp is reached but in fact slow themselves down (both heat and fan) to keep some level of air circulation in the room. This is a good thing by the way.
There are usually two toggle switches .... one is a heat switch - usually Low & High .... the other is the thermistor switch (this sometimes is labeled “fan”) - usually Auto & High.

Once the unit is on its back ... Now, change the settings as follows:
Turn the Heat switch to LOW
Turn the Fan switch to HIGH
Turn the dial (with the temperature in degrees on it) to the lowest setting - which is somewhere around 60’ish.

Now turn the unit on and it should stay working.
Three things that could cause it to turn back off ...
You turn the Fan switch back to Auto.
You turn the Heat switch back to High
You turn the temperature selection dial too high ... though, you can cautiously turn the dial up a few degrees at a time ... the unit will start shutting down again when you set the temp too high ... then just dial it back down ... unplug for a couple minutes, then turn back on.

Oct 22, 2008 | Vornado EH1-0014-01 Compact Heater

1 Answer

Edgestar 12000 heating problem


bad thermostat. the stat can be as must as 5 degrees off. try, if possible testing the unit in a differeent location

Dec 24, 2007 | EdgeStar Portable Air Conditioner Heater

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