RUUD Heater and Ac MODEL #UGPH-07EAUER

Your fitter didn't fix the original issue it would seem. That is the problem with fitters, they cannot repair things.

Pull the hose out from pressure switch and check for any restriction ,also clean where hose is connected to from furnace because that will get clogged

An open limit switch may make the fan run all the time. Try disconnecting the Green wire @ the furnace...if that does the trick, then either the thermostat fan relay is stuck, or there is a short between the Red & Green wires somewhere in the thermostat wire.

Does this unit also have an AC coil installed? Can you check to see if it is dirty or blocked? Although you are not cooling the heated air must still pass through this component. Has it ever been operated without a filter? How many return ducts tie into the unit and is each path filtered? Do you have filters in the individual return grilles? What do the blades on the blower look like? It sounds as if the temperature may be too high if you have to continually reset the high limit. This occurs when you have low air flow.

Whew...

Most likely... Your part number (look it up)

RUUD 47-25349-?? (LIKE: 02, 03, 07... etc).
(typically: $10 -$20 range... easy job)

On eBay:


A bit slow getting this answer out on the table...

Sorry anonymous.

BUT for the "over-temp" condition...
Forget the wall THERMOSTAT.
There's usually a switch to option the "DEPTH" of
your heating cycle
(Look up Owners GUIDE for your SPECIFIC MODEL).

The "cool down"... (if there is one) would more
likely be you heaters OWN (fan) THERMOSTAT...

It SHOULD not be getting that much RESIDUAL heat
(possible plenum failure... but hopefully just the switch).

Here you have to ask yourself...
Is IT TIME to get your heater
PROFESSIONALLY inspected...
Pacific Gas & Electric used to do that for FREE...
(but in this new, improved UTILITY climate
we enjoy today... I doubt they''ll do more than TAKE OUT
a few blocks in SAN BRUNO for FREE anymore...
(you might want to check...
(Same DEDIATED workers w/ really poor Management)).

(My opinion: FAT CAT, CRONY, bought & well-paid
EVIL/corrupt Government "oversight" (CPUC)).

There SHOULD also be a HIGH TEMP
fuel shut off "SAFETY" thermostats..

All these should only be handled with skill & knowledge...
as GAS APPLIANCES can be quite dangerous in the
WRONG HANDS...!!

I am just saying...!!

I'm here daily... Comment me back if unclear.

Happy hunting.

Carnac the Magnificent Y

Lack of maintenance.

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

There is a limit switch that is likely opening. Be sure your filters are clean and all registers and grilles are open and not obstructed. If the problem continues, you may have a dirty indoor coil or undersized duct work. Some models have a window where you can observe the LED lights. If when the furnace shuts down you see any blinking, you need to count the flashes and we can figure out what the problem is from there.

Make sure filters are clean . if they are stopped up the unit will over heat. Lets start there. Russ

I recommend you getting service its a safety thing. the humming is the transformer and is normal.. good luck Tom

Cleaning the flame sensor has nothing to do with blower motor not turning on. You either one of the following problems 1 bad cap for motor. 2 bad motor. 3 bad limit on blower housing or 4 a bad board. You will need a volt meter to check for these problems. Try seeing if the fans runs with unit of and fan switch turned to on. Also does motor hummmm. Is motor cage free ( can check by manually turning) If motor doesnt humm and the cage is free wheeling then you will need to find out if you have power going to the motor. If you find out that you do then you will need to change blower motor. If you do not have power then you will need to check limit with continuity tester on volt meter. If that checks fine only 1 thing can be wrong and that is the board.