20 Most Recent Intertherm P3RA-048K Air Conditioner Questions & Answers


The little black box is a relay. The wires being melted means ,of course, that the contacts inside the box are pitted or corroded. You really should call a reputable repair man.

Intertherm... | Answered on Dec 10, 2017


Sounds like the thermocouple has gone which can happen any time nothing to do with reg change But I would check that pilot is not blocked causing a short pilot .

Intertherm... | Answered on Jun 26, 2017


Sounds like a problem with the circuit board.

Intertherm... | Answered on Dec 04, 2016


it is on return air side of coil.

Intertherm... | Answered on Sep 16, 2015


change fan motor capacitor. the other issue could be low gas pressure. mine acted that way when i was running low on propane.

Intertherm... | Answered on Sep 16, 2015


going out on high limit which requires manual reset

Intertherm... | Answered on Sep 16, 2015


change capacitors on unit

Intertherm... | Answered on Aug 19, 2015


Tom P's answer is generally correct: The motor start capacitor is usually not the problem. However, in some cases, particularly on older furnaces, where there were capacitors of certain make and production run will prematurely fail. This happened in March on a mobile home HVAC unit where both the blower fan and condenser fan motor capacitors failed open circuit. Both caps were of the same Mfg, and production lot.
Here is a suggestion (for you or an electrically inclined friend): Locate a substitute motor capacitor having similar Mfd (or MF) and Voltage ratings. Remove power from the unit. Reach into the blower squirrel cage and spin it to verify that the shaft is not frozen. Pull the wires from the existing capacitor noting color and location. Connect the wires to the substitute capacitor and secure it place. Apply power and turn on the blower. A no start? Motor replacement time.

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Intertherm... | Answered on Apr 12, 2015


why did the wiring burn?Id have the heat exchanger inspected before rewiring.better to be safe.

Intertherm... | Answered on Apr 10, 2015


Shut off power, get a small wrench, remove orifice spuds and clean them with toothpick. Take burners out and clean rust from them. Check and see if you are getting 24 volts to gas valve. If not replace it.

Intertherm... | Answered on Nov 26, 2014


You may have a problem with a temperature safety system.  Before changing anything else, check to see if the unit is clean!!!  Dirt/dust can fool the safety system into an overtemperature status.  Inspect the heat coils for damage and dirt.  Gently clean.  

Intertherm... | Answered on Oct 22, 2014


HEY< this sounds like an electric furnace and some heating elements are not working! WHY! Just call 918-6878813 and see if KOOL BREEZES cAN HELP!

Intertherm... | Answered on Sep 30, 2014


Do you know if your unit is a heat pump or not? Sounds like it may be an electrical problem and yes you would need to call a service tech.

Intertherm... | Answered on Sep 15, 2014


at night disconnect power use flash light and mirror check to see if coil is stopped up if unit is up flow coil fan heat kit make sure there is a trap in the drain line or unit will pull air into system most likley cause is dirty coil hope this helps unit could also have dirty fan blades low air flow or starting to freeze the coil due to low freeon charge if down flow supply duct under unit ths is not good due to heat kit on bottom of unit can get wet! hope this helps with your problem

Intertherm... | Answered on Sep 01, 2014


you need to contact your nearest a/c supply house. most company's that sale parts on line will not sale gas valves to the public due to liability.

Intertherm... | Answered on Jul 01, 2014


Hello, this sounds like a faulty capacitor. Replace capacitor to the motor.

Intertherm... | Answered on Jun 12, 2014


the blower on my furnace keeps going on and off when i turn the furnace on .ichanged the snapdiscs no change changed thermocoupler and therostat still no change whats my problem

Intertherm... | Answered on Mar 25, 2014


Make sure the gas valve is turned to the ON position after you had it in PILOT position. Also check the thermostat low voltage wiring @ furnace...jumper the Red & White wires to bypass the thermostat temporarily. Make sure there is 24 volts on you low voltage circuit.

Intertherm... | Answered on Dec 16, 2013

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