Feel free to discuss your heat pump defrost problem here. Or help us solve some of the problems presented.Click below to see contributions from other visitors to this page... Heat Pump Defrosts at 45 degrees and too often. I recently installed a Airtemp VT48D-36k 3.0 ton Heat pump. The outside unit defrosts at 45 dgrees and higher and does it way to often approximately … Trane heat pump shuts down at 0 degrees fahrenheit The new Trane heat pump cuts off completely at 0 degrees. The installer was told that this 15 seer model is designed to shut down because it can no longer … blows cold air too long Trans outside unit 8 years old 5 ton. When it defrosts it blows cold air for about 30 minutes House temperature drops about 5 degrees everytime it defrosts. Insulated pipe in basement drips. There is a slight drip from the insulated pipe that runs across my basement ceiling which connects the outside heat pump equipment to the inside equipment. High temperature frequent defrosting My new Goodman heat pump defrosts even at outside temperatures of 42-46 degrees.

Very Cold Vent Air (56 degrees) during Defrost Even though Heat Strips are On I have a new Trane XL-15 3.5 ton heat pump. It works fine except during defrost. When conditions are: 65 degrees inside; cold air Really cold air forcefully coming up through registers when defrost cycle is on..indoor wall mount ac unittemperature drops 2 full degrees in house ...system says" auxillary heat …mobile home outside ac unit york model ef4h does not go into defrost  I have a york model e4fh heat pump in the house i just purchased durning the summer the ac stopped company came and looked at it and said a wire had came …how to get an hvac job won't go into defrost Goodman SSZ140361AF We have changed the defrost sensor and board but still won't go into to defrost

How to determine if a defrost board is functional The carrier heat pump will not initiate defrost. Make: carrier heat pump no defrost cycle ice on coil Defrost cycle not working ice on coils while heat pump is running Heater Fan Relay Problem I have an Amana SPOH6001A unit that when it is cold, the heater fan relay clicks real loud and the outdoor fan momentarily cuts out. If the temperature … Heat Pump not Defrosting in Defrost Mode I have a older unit(Heil). The unit seems to go into defrost mode but it doesn't seem to be defrosting anything. The fan shuts off and the compressor … Defrost control board turns out side fan off during cool Model Carrier 25HBC536A300 S/N 2211E06528 While the heat pump is in cool cycle (running well) the indoor fan turns off and the compressor keeps running … Mitsubishi Heat Pump Defrost is On Too Often In winter conditions the defrost cycle operates 35 minutes apart...while the coils outside were clean and no ice or frost... the model of my mitsubishi …

whirlpool model WHP4430AAE When the outside temperature drops to less than -6 degrees C, the heat pump cycles more then 7 times and the furnace cycles on and off several times. will not defrost new defrost board, refrigerant is fine, ice build up and will not defrost its a Carrier heat pump Model #38QN030330 Defrost Icing Problems - American Standard Heat Pump This unit is an American Standard heat pump, 2.5 ton 13 seer, R-22. It ices up every time it is 42 degrees or colder and raining outside. will not defrost  Not rated yetYork model YHJD30S41S2A will not defrost when outside temps. get near 32 degrees in side air continues to cycle from blowing warm air to cold air and … Defrost Cycle Too Short Not rated yetLast winter my York heat pump was not going into defrost mode. I was able to force defrost by jumping the pins on the control board. Defrosting took quite … Unit won't heat or cool--they want to replace defrost panel Not rated yetLennox.

Intermittant problem with the air conditioning not working correctly. It blows cold air for awhile, eventually it just blows coolish air, the … defrosting cool mode Not rated yetRheem RQNC 048 going into defrost mode while in AC mode Defrost turns on when in the cooling mode Not rated yetI have a 3-ton Bryant 664A, and the system seems to reverse when it is supposed to be cooling. It will start out cooling well (intake is about 86 degrees, … Goodman heat pump blows ice cold air during defrost cycle Not rated yetGoodman Model PHKJ036-1F Hi, i have a 7 year old 2.5 ton Goodman residential heat pump that is blowing ice cold air during the defrost cycle. defrosts too frequently Not rated yetI want to change my defrost interval time on a Lenox HP 26-030. How do I do that? heat pump not working Not rated yetIn heating mode the condenser comes on and runs a few minutes then shuts off it is a whirlpool MN:W2H330A-1AWhat is the Summer Saver device? The Summer Saver device is a small, wireless box mounted near your central air conditioning unit.

It operates with central air conditioning systems and is not designed for room A/C units or small space units. While the Summer Saver device works with most central air conditioning systems, there are some systems that are not recommended to be operated with these devices. These include central air conditioners with communications boards, integrated environmental controls, energy management systems, variable speed compressors, or special wiring. A trained Summer Saver technician will carefully evaluate your unit’s compatibility before beginning any installation activities. If your unit is not compatible, you aren’t eligible to participate in the Summer Saver program. How does the Summer Save device work? On select hot summer days, a remote signal is sent to activate the device, which then cycles the cooling function of your central A/C "on and off" for a few hours. Is the Summer Saver device safe to use with my central A/C unit?More than five million similar devices have been installed nationwide.

During normal operation your central air conditioning turns "on and off" based on your thermostat setting. This is called cycling. Whenever there is a power emergency or critical peak demand, your Summer Saver device will be activated for a conservation period of two to four hours. While your central air conditioner is in a conservation mode the run-time of the condenser (the cooling portion) will be reduced to save energy. However, your fan, which requires little energy to operate, continues to circulate air for added comfort. What is the difference between the 50% and 100% cycling options? 50%: With 50% cycling, your air conditioning will run half the time that it ran in the hour before the conservation period. When the conservation period is over your air conditioning will return to normal operation under the control of your thermostat setting. 100%: With 100% cycling, your air conditioning is turned off for the duration of the conservation period. The temperature increase will vary by type of residence and will be noticeable if you are at home.

What is a "ton"? Tonnage is used to express the one-hour cooling capacity of air conditioners. One ton is 12,000 BTUs of cooling/hour. On average, one ton will cool from 400-700 square feet in a residential application. How do I calculate my bill credit? Your bill credit is based on the tonnage of your system. At 50% cycling, you are paid $11.50 per ton.  For example, if you have a 4 ton system, you credit would be $46. For 100% cycling, you are paid $30 per ton. For a 4 ton system, you'd earn $120. Will the Summer Saver turn my air conditioning on, if it is off?The device will not turn on your air conditioning on in order to cycle. It is designed to only work with units that are operating during the conservation period. When will the device be installed? Generally, within two weeks of signing up. A typical residential installation takes about 30 minutes provided the technician has access to your exterior A/C unit. You don't need to be present, but you may schedule an installation for a time when you will be home.

Who provides the installation and technology? We have an agreement with a third-party, Comverge, Inc. They are responsible for installing, removing and servicing the wireless unit. How does the annual bill credit work? Participation in Summer Saver begins the day your cycling device is installed. If your install occurs after October 1, you’ll receive a credit on your December SDG&E bill of the following year. The amount of your credit is based on the size of your A/C unit and the cycling option you choose. You may change your cycling option any time prior to August 31st; your bill credit will be based on your cycling option as of October 31st. Between September 1st and October 31st, you may only decrease your level of participation (from 100% to 50%). If you enroll between September 1st and October 31st you will be enrolled at the 50% cycling option. You may opt out of the program at any time but will not receive any compensation for partial participation. I have more than one central air conditioner.