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My high temp limit keeps tripping on air ease mod# rpge13a60100p-3a

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Is this electric heat?

Posted on Apr 24, 2017

Testimonial: "no gas, the housing around the burners is getting to hot and trips hi temp limit."

  • Thomas Woodburn
    Thomas Woodburn Apr 24, 2017

    I don't know gas but 9 times out of 10 it is an air flow issue. Either fan not running fast enough, dirty filter or diffusers closed. It is possible the limit is bad. Good Luck!!



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We have Turbochef NGC N6. The units high limit thermostat had tripped. Re-set thermostat and found cooling fan not working. also found thermal cut out ( top left rear looking from above ) had also tri

ur high limit trip because ur heater overshoots the program setting for the temp replace ur k4/k5 solid state relay for it controls ur temp for the heater.

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Rool out switch keeping tripping

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High temp limit opens causing furnace to short-cycle

An adjustable high temp limit up to 215°f is acceptable in some installations. Your service tech should take a temp rise measurement. All furnaces have data, and are different per unit. That data should give a temp rise number. As if the air entering is 75°f and the air leaving is 150°f, rise is 75. This will indicate an air restriction in the furnace or poor air flow if the rise is excessive per manufacturer's specs. I've seen the insulation inside the supply air plenum come loose and block the ductworks openings, which will act as a restriction and cause the unit to overheat. A slow blower due to dirty blower wheel, damaged windings, wrong speed, weak capacitor, low voltage, or wrong motor will all cause low airflow, and will overheat. Dirty or compacted evaporator coil also. A cracked heat exchanger anywhere near the high temp limit will be a bit hard to find/detect will certainly cause the limit to open. If this unit is having an overheating issue, it's certainty an issue you may want to call in a professional to help with. Try operating the heat in medium speed at the blower. If it's tripping within a minute or less, it may indicate a heat exchanger issue. If it takes a while, 2-5 mins, then I'd suspect an airflow issue. Hope this helps you!

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If the problem persists after bleeding check to make sure the pump is running

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My fryer will not heat up consistently. If i press the reset button, it heats up. But after heating up to a certain temp it shuts down and stops heating. There is power to the unit, it seems like a problem...

It probably is a problem with the thermostat. The reset button is probably a high limit. The high limit is a safety device to turn the fryer off if the oil gets too hot. Normally they will "trip" somewhere between 375 - 450 degrees F for commercial fryers. I would suggest placing a temperature probe in the oil and see what the oil temp is when it trips. If it trips at a temp below 375, it is a bad high limit. If the thermostat is set at 350 and the temp goes over 400 then the thermostat is bad.

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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.

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Sounds like the limit switch is not bad ...... its just doing its job. You need to determine why he furnace is overheating. Are your filters clean? Is your blower wheel clean? Is your blower motor running fast enough? It might be set on to slow of a speed. The blower motor capacitor could be bad. Are all of your air vents in the house open? Are your return air registers blocked? Is your duct work properly sized? Put a thermometer in the return air duct. Note the temp. Now stick the thermometer in the plenum. Note this temp.. Subtract the high temp from the low temp. This number should fall within the temp. rise rating found on the data plate inside the the furnace on the same sticker as th model and serial numbers. If your temp. is above the suggested temp rise. you have an air flow problem. If it is within the suggested temp rise listed then your high limit control should be replaced.
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Arcoair central heat /air conditioning unit

The blower motor kicks on when there has been a 24 volt control failure.

This usually means that a limit switch has tripped.

Most likely that would be a high temp limit switch or a rollout switch.

First, make sure the filters are clean. and the evap coil is clean. If eaither are dirty/clogged, it will partially block airflow, causing the furnace to overheat, causing the high temp limit to trip.

A rollout switch typically trips for three reasons.
1 flame rollout into the burner compartment due to poor airflow.
2 overheating af teh metal plate the rollout is mounted to, due to dirty, old, rusted components.
3 a bad limit switch.

If your unit has an LED light, count the flashes and it will hepl popint out the problem.
(locate the wiring diagram/flash code list, and correspond the flash count, with the code.)

First, check filters.

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possible dirty air filter low air flow causing high temp in fire box to trip limit switch or fan motor is bad hope this help let me know if you if this solved problem I may need more info

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