Some times I would tape the capacitor’s connections so they could not ground against the body of the unit. The only way to know if it is the capacitor or not would be to test the capacitor with a capacitor tester. My A/C unit had a large shut-off switch like this: Shut off the power to your A/C unit or heat pump before you proceed, and don’t forget to discharge the capacitor. We would love to help you out and have your business! 365 day right part guaranteed return policy. You might have some variance in temperature coming out of the top of the condensing unit, but it should never be cold. But looks rusty and used by the connectors..the thing just stoped cooling..I hope it’s the capacitor..what do you think, Hi Phil! I would also make sure that your furnace is airtight and is not allowing air to come into the combustion chamber or burner area. I know it is hot most everywhere! Hi Jonathan! Thank you so very much for your blessings! If you are looking for an HVAC products supplier that will treat you the way you should be treated, turn to us. P. popechild Member. Hi Rick! Central Heating Pump Problems & Cures. If this is a heat pump then I would think that you have a reversing valve that is stuck somewhere between heating and cooling mode or you have a bad TXV (thermostatic expansion valve). My air conditioner is only about 5 years old and it wasn’t used very heavily each season and I had it covered when it wasn’t in use. Make sure you’ve followed the three steps mentioned above (power to the A/C unit or heat pump off, capacitor discharged, and photos taken) before you proceed. The new capacitor is 45/5/440R +-3%. Heat Pumps and Electric Home Heating - seeking replacement capacitor - Unit Model number : PH12NA024-G The unit has two capacitors. To help determine this, you can either check if it’s swollen or use a capacitor tester. I replaced the 35/5 capacitor and it ran great for 4 days. Is this common practice? Troubleshooting Problems of Lights Dimming When a Heating Appliance Is Switched On. Thanks for asking this question. Heat pumps utilize the crankcase heater to keep the compressor oil warm and prevent the liquid refrigerant getting into the compressor causing the damages. One side of the breaker could still be on and it could give you a shock. When the compressor goes bad in a heat pump, it will threaten the whole operation of the system. Overheating is a primary cause of a failed start capacitor. The voltage is important too. The Air Conditioner Would Not Be Blowing Cold Air . Steve, Hello, Mike here , my unit quit working, it is 4 years Old, it is a carrier brand, would the capacitor gause my condensation pump to stop working, and what would a new capacitor cost, as well as the other piece installed in your video. Humming. Many times I see capacitor problems that will not allow the compressor or the fan to come on. Do you have 220 to 245 volts between T1 and T2 of the contactor when the thermostat is calling for cooling? It could be any one of many problems that could cause your air conditioners to not work. If you are getting 24 volts to the contactor coil and the contactor contacts are not pulling down then you have a bad contactor coil and you will need a new contactor. Problem: heat pump blowing cold air symptoms: after about three minutes of turning on, the thermostat kicks into Aux, but never blows heat; and the copper refrigerant line does not get warm. No sir, most capacitors do not hold a charge. The most likely cause is either a failed capacitor or contactor. If you do not have a volt meter I would like to suggest that you get one so you can test to see where the problem is located. Below we have a real good informative and educational video on “Dual Capacitor Checkout Procedure” made by Ron Walker. Freezer Troubleshooting: A Compressor Starts Then Kicks Off. 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