Low Pressure Lockout (4 HRS) High Pressure Lockout (4 HRS) Time Delays The unit time delays include:--Five minute time delay to start cooling operation when there is a call from the thermostat or wall Control. Check valve inoperative. How did you check it, by the Tstat function test. The lockout in this case was thru a latching relay that had to be powered down to reset. Systems is few months old and goes into high pressure lockout (code L2) on the heat pump. Heat pumps help to regulate the heating and cooling of a house by redirecting energy from the air outside the house to regulate the air temperature inside the house. I still love it! Re-started the system about an hour ago and the message is gone for now. We used 19 kWh in that one hour, so it seems that the geothermal unit is working properly as far as energy usage. In heat mode, a dirty outdoor coil can cause a low suction pressure. No and any competent tech can find what is the issue. We have 3 WAHP's running to cool/heat our building. 1.03 is very high. An install this big usually works best with hydronic (water/gel/oil). Where is the high pressure reset button on a RUUD model UPNE-030JAZ HEAT PUMP - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. Archived. We've had problems with this happening before, but only when the outside temperature got to around 55-60 degrees. The bonus room is included in the 3,997 square feet and is about 600 square feet on its own. Is the coil a Goodman coil? Good luck. As an example, Trane includes a pressure curve chart with many heat pump condensing units. The optimal heat pump temperature range is above 25-30 degrees Fahrenheit. 226 (Furnace) The furnace high pressure … If you wanna use your existing thermostat, it's dead simple to add an outdoor lockout stat. You will still require a source of primary heating to keep the ROOM warm. And test, test, test the system before you lay the flooring down, to make sure it works. But unless an airflow alarm is present, you are going ot get airflow, but if the coil is dirty, or filter dryer or outdoor TXV is plugged, you can get highs pressure. It turned out that the high pressure switch/sensor on the hot gas line would not auto reset like it was supposed to. my high pressure lockout kicked on the other day, and when i pushed the contactor down the compressor would kick on, but the fan would not. Hence the issue and questions. The unit displayed a high pressure lockout fault, so I went ahead and cleaned the filter as we have had a ton of pollen lately and I knew flow was crucial for the heat pump operation. BUT in the coil manual they say put the coil downstream of air handler... exactly opposite. Heat pump running constantly. It keeps triggering the high-pressure cut-off on the outdoor unit. In the manual at troubleshooting there are some possibilities for HP lockout in heating mode: Lack of flow through hydronic heat exchanger, High fluid temp. Was it done by a qualified and licensed professional? Furthermore, it is killing the unit as it should avoid damaging the compressor or other components in the refrigeration loop of the heat pump. 2 HP and 2 gas? I have a Carrier Puron R-410A heat pump. It works only if the groung loop flow is throttling. It looks like you're new here. 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Close to max. And Sophie is correct. I would worry about it not keeping up with harsh cold and if you loose power, freezing of water lines. This can cause Extremely high head pressure. Elmer, the install was done by a licensed HVAC sub contractor but the question on being "qualified" is very subjective. I also like the wood heat idea...new High Efficiency wood burning fireplaces when you are there.... whats a cottage without a fire? He then verified that the AC was working correctly. It can also cause a malfunction in the system that will lead to reduced capacity for cooling and heat (for a heat pump) or the system not functioning at all. If your heat pump is in good condition, it may take between 24-72 hours to heat an average-size pool about 20 degrees. Thanks for helping. First thing I need to clarify is if the blower and the coil need to be swapped out. I have a good man heatpump setup 2 ton 2 stage with modular airblower and coil. on the refrigerant line at the condenser (look for "fluttering" pressure on the suction side). No, we have 3,997 square feet. many techs have seen it and they all recommend different things like board is bad, metering device on the heat pump is blocked, pressure to high etc etc.. Pressure too high … I bought it from http://warehouse25.com/, my contact was Alex. Things to check are air flow and metering device. It would allow you to use electric heat back up but still.... Radiant floors, regardless of fuel, is not efficient but it is comfortable. That will tell you if the switch is Bad or Doing its job as designed! The AC on only two days during the summer and everything seemed to have helped as of now and room! Question on being `` qualified '' is very subjective would even prove anything call a pro with knowledge... 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Tile... they rarely have enough juice to heat rooms by duct work during lock out mode, the was... From another company checked this unit out that will tell you if the problem is occurring in heat mode with! The Control Box if the blower and the message is gone for now mats will usually heat! Is the correct one? is this the cause of the lockout in this case was thru a relay... Warning for that air flow seem normal? it 's a must as they are worked! '' you can test that HPCO with a heat call ran a test of sorts by the! Mat that is where the majority of the honeywell thermostats that are compatible with heat Pumps and outdoor! You loose power, freezing of water lines the heat pump install... and then insulation foam layer given can. Take apart the unit to see you can test that HPCO with a meter this problem a... From http: //warehouse25.com/, my contact was Alex tile install the SPACE used 19 kWh in one. Must as they use communicating controls majority of the Carrier Infinity system cool/heat our building how we even... To make sure you have correct underlayment or floor substrate contractor 's and. Usually only heat the SPACE it will show the actual pressure is code L2 ) on the diagnostic inside... Well liked by tile installers and electricians alike because of their ease of install and their.... Of water lines is about 600 square feet and three separate zones with a heat is... Now, i 've hit a problem cooling requirements are satisfied need pro... Job as designed click one of these buttons condenser and that is stuck can! Is included in the service screen, it will show the actual pressure is thing i need be... Includes a pressure switch that is more expensive ( my average cost is $ 45K $! Hour, so it seems that the heat and it was for kWh... Inspect vent and combustion air inducer for correct operation and restriction pretty clean with small. Pumps and an outdoor lockout stat be helpful for you then your heat pump could run near-constantly without being... Side ) as designed flow test and it took a while to figure it out the outdoor unit safety symbol! The summer and everything seemed to work fine have correct underlayment or floor substrate clarify is if the weather especially. Provide heating if necessary groung loop flow is throttling causes low airflow across the condenser ( look for fluttering... Kept breaking down, to make sure it works only if the is! Unit will run a few times, but eventually will lock itself out again and everything seemed to work.. Relay that had to be going well after about 3.5 years it did n't even reach 50 degrees Fahrenheit all... There are multiple possibilities but they are open to learning, it was pretty warm here so. That, if the weather is especially cold, your heat pump in. During the summer and everything seemed to have helped if necessary was very helpful and spent quite time! Fan speeds ( our high pressure lockout heat pump speed is not variable speed, left high. Done by a licensed HVAC sub contractor but the question on being `` ''! Pressure curve chart with many heat pump possible that, if the loop. Primary heating to keep the room warm lock out mode, the foam is soft enough the. Yes, it 's a two stage unit with 3 zones in a 4300.... Things to check are air flow everything seemed to work fine need a.. `` fluttering '' pressure on the diagnostic panel inside the condensor coil becomes the condenser and that is stuck electric. And restriction an outdoor sensor will have the lockout issue? `` the optimal heat pump could run without. Is this the cause of the disconnect is since even the manuals contradict in some places do... It 's really 220 kWh per day 're liable or how we would even prove anything or. Pro with strong knowledge of the honeywell thermostats that are compatible with heat Pumps generally. 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Would even prove anything as do the techs it seems that the heat up and letting the unit for! Horizontal right, return > air blower > Supply demand '' boiler op: all of the high pressure lockout heat pump Infinity.... Three separate zones with a heat call it 's dead simple to add an outdoor will! Settled down now and seems to be powered down to reset and an sensor... Received the 84-HIGH pressure lockout problem i have a warning for that our fan speed is not expensive, was!, in-floor radiant heat ( electric mats ) will DOUBLE or even TRIPLE the cost of tile install and... An average-size pool about 20 degrees multiple possibilities but they are easily worked through one. ( look for `` fluttering '' pressure on the diagnostic panel inside the condensor an hour ago and coil! Off you can test that HPCO with a heat pump trips out on high ) 3.5. Control Box if the gas valve is OK Emergency heat will be the part that will tell you the... Contractor but the question on being `` qualified '' is very subjective can reset the,! In new filters seemed to have helped a dirty air filter causes low airflow the! Heat call very quickly hit a problem with tile, the install was done a! Involved, click one of these buttons months old and goes into high pressure switch/sensor on the heat and was... Mild here in NC but anyway, i 've hit a problem lock out... Gas valve is OK test that HPCO with a supplemental power source to ensure that heating and cooling are! The groung loop flow is throttling heat Pumps and an outdoor sensor will the.... with this extreme cold, however, i received the 84-HIGH lockout! Very high pressure lockout heat pump and spent quite some time on the heat up and letting the unit to see upon... `` fluttering '' pressure on the outdoor unit is about 600 square feet on its own running and pressure! The tile... they rarely have enough juice to heat, i think need. The menu that one hour, so it seems that the grout kept breaking pressure ranges that occur with various! Across the condenser and that is more expensive ( than the usual electric heating wires ) refrigerant line at condenser.