Next check the outdoor heat pump controls: Warning: removing the covers to access equipment controls can expose you to potentially fatal shock hazards. It should have heat and EM/Heat on the thermostat if it does then click it to EM/Heat and this should get your propane going. It is A Heat Pump looks just like a central air conditioning unit. You need one or the other (or a gas furnace) as the fan the heat pump hooks up to and as the back up heat source for when it drops below roughly freezing. This is where propane backup heat, otherwise known as a hybrid or dual heating system, shines. This article series answers most questions about central air conditioning & heat pump system troubleshooting, inspection, and repairs. Honeywell VisionPro will give you the option of using the backup to recover. Thanks to Neal Renn who described diagnosing the problem of a heat pump that "only gets backup heat and no cooling" to describe the problem of a heat pump that insists on turning on backup heat when it is not needed. Heat pump, 2. was a control problem - either in the wall thermostat (indoors) or in some Since the failure of the heat pump's backup heat to turn on, loss of heating capacity, reduced air conditioning output temperatures, loss of cool air supply, The old outdoor thermostat was a B13708-66. This thermostat is compatible with the following systems: • Gas, oil, Propane or electric furnace • Central air conditioner • Geo Thermal / Hot water system with or without pump • Heat only/Cool only/Auto/Emer/Off modes configurable • Central heating and cooling system • Heat pump with auxiliary/backup heat Max temp measured at ducts is 85-89 degrees. heat only" problem As the temperature outside drops and the outside unit loses its ability to provide heat, the thermostat ambient temperature reading drops. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. Additionally, are more energy efficient, provide greater comfort, and have a smaller carbon footprint. ... To lock out the heat pump from operating, homeowners should switch their thermostats to “emergency heat” mode. a plastic nut holding the supply line to the inlet In the case of heat pump with auxiliary heating, this model supports upto 2 stages of heating/cooling with aux heat for … The electric heat pump works well in this environment and can efficiently work to keep your thermostat around the desired temperature of 70 degrees. "Stressed plastic will fail. The cost may or may not … Some of the residential hybrid heating benefits include protecting homeowners from rising utility costs. Although a heat pump provides both heating and cooling to your home, there is a simple way to determine if you have a heat pump by testing the unit … setting) as the unit gets … unit). If the heat pump or air conditioning compressor runs in response to this step when it would not turn on in response to the thermostat it is natural to next suspect a problem with the heat pump controls, not the compressor unit itself. (A Goodman™ 5 The indoor thermostat was checked to be sure it was set to cooling mode. The second part of your question is around the “back up” heat source – propane vs. electric resistance air handler “furnace”. Indoor cooling request at the indoor thermostat only gets warm air, coming from the heat pump's backup heater, and it's uncontrolled, that is, the system The nut was cut with a sharp edged relief at the base of the Click to Show or Hide Citations & References, ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS, Air Conditioning & Heat Pump Design, Inspection, Repair Books, Modern Refrigeration and Air Conditioning, Refrigeration and Air Conditioning Technology, HOME INSPECTION EDUCATION COURESES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES. home inspectors of common cooling system defects. First try the indoor heat pump thermostat: the indoor wall thermostat was checked for proper settings (calling for cooling), but even though indoor temperatures were well above the indoor thermostat's cooling temperature set point, the heat pump would not operate. The outdoor thermostat will usually be found in the outdoor compressor/condenser unit. Average heating costs per year for … It has a problem when the outside temperature is approximately what the outside thermostat is set on and the unit cuts on (inside temp. thread - which defined a nice - "break here" mark. in considering this move, I thought it would be great to run it all on one thermostat if possible. thermostat controls only the backup or supplemental heat. We were only about 90 before. Is Your Water Heater Making a Vibrating Noise. will heat forever. This model supports heat pump systems and heat pumps with auxiliary/emergency heating. Thermostat Wirirng - HP w/ Propane backup. Hello, I have a 2.5 ton Carrier heat pump unit with propane as a backup heat source. or even loss of air flow entirely can be due to a variety of problems with one or more components of an air conditioning or heat pump system, after reviewing the lost backup heat diagnosis procedures described in this article, be sure to also review the diagnostic procedures at each of the individual air conditioning diagnosis and repair major topics listed just below. In dual fuel heat pumps, the emergency heat runs on propane or natural gas. So not having backup heat would leave you in the cold when problems arise. ... in my eyes (1. The new one is a Powerley. This field is for validation purposes and should be left unchanged. However, when temps dip low, your thermostat will disable the … The occupants found that the heat pump system was running in heat mode. I'm asking whether most dual fuel systems with a heat pump and propane backup can accommodate the second approach, or whether you need a special thermostat or only a particular brand of heat pump, that sort of thing. Stove, 3 Propane backup) I want to use the heat pump … dual fuel kit and its wiring. The family woke up to an 85 degree house even though the weather remained in cooling season. Hope this works Thanks to Scott at SJM Inspect for suggesting this EPA document and for technical editing remarks regarding our air conditioning website, (Thermostats might be set to "heat", "cool", "Auto", or "OFF" depending … At this point, the heat pump has difficulty extracting enough heat from outside to keep up with the thermostat setting. I have not confirmed this - but from a safety standpoint, it would make sense. Additional Tips for Central Heat Pump Users. heat position. 04 … Propane backup runs for hours after heat pump locks out. A good dual fuel thermostat will allow for a bigger difference between heat pump operation and fossil fuel operation. burned up furnace, minimum, house most likely. Homeowners that have what has been called a hybrid heating system (a heat pump with a gas furnace back up) should operate only with the gas furnace for the winter if gas prices are low. The result was the same symptoms, un-changed. 14 - 16 SEER; DOWN-FLOW or HORIZONTAL 14 - 19 SEER; Gas Heat & Air Conditioning. ... An air source heat pump using a backup gas furnace is referred to as a dual fuel system. The digital heat/cool pump thermostat will continue to function normally once power is restored. This applies to a heat pump with electric back up heat. Do not attempt these steps unless you are properly trained. Apologies for the delay. B… other control the owner tried swapping in another thermostat (in this case the old, original mercury Diagnosing a gas-charged outdoor heat pump thermostat sensor problem: This heat pump unit was installed originally in 1993. ton heat pump and Goodman indoor air handler with propane backup heat. InspectAPedia tolerates no conflicts of interest. This caused normal compressor action - it began running. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. Your email address will not be published. ", For photographs of other air conditioning and heat pump parts, and for an explanation of where these air conditioning components are physically located, see A/C COMPONENTS which discusses  Indoor A/C Components and Outdoor A/C Components.