I have a Carrier model 38ycc048320. Does anyone

Carrier says they carry them on their website. Really though, you need a qualified engineer with gauges and refrigerant gas. There isn't much you can do yourself.

https://www.google.com/search?q=Carrier+Heat+Pump+Model+25HBC+service+manual

..

https://www.carrier.com/carrier/en/cr/products-and-services/residential-systems

First, I'm not a ICP representative.
* Repairs on this type of equipment requires a CFR certified tech.
* Check your warranty. Call for service.; http://www.icpusa.com/

*** following is for information only.***
* HVH8 Application Guide (SEER Comparison);https://hvacdirect.com/hvac/pdf/HVH8-App-Guide.pdf
* Parts; https://www.repairclinic.com/Shop-For-Parts/a38b382d1292210/Model-CH7536VKA6-ICP-Heat-Pump-Parts
* Valve parts; https://www.americanhvacparts.com/p-11505-heat-pump-oem-direct-manufacture-replacement-reversing-valve-kit-with-24-volt-240-volt-coils-icp.aspx
* Tempstar 12+ SEER Heat Pump(specs); http://icpindexing.toddsit.com/documents/086477/42821310106.pdf
* 14 SEER brochure; http://icpindexing.toddsit.com/documents/086477/42865600800.pdf
* Digital Thermostat install; http://www.utcccs-cdn.com/hvac/docs/1011/Public/02/61601100600_ICP_5033.pdf
Aloha, ukeboy57

PS: Additional information:
* about heat pumps; https://www.consumerreports.org/cro/heat-pumps/buying-guide/index.htm
* ICP HVAC 5 Speed inverter install; https://www.youtube.com/watch?v=JL4iMH4STzk
* ICP Pinnacle (New); https://www.youtube.com/watch?v=MPkoAZLb6Co
* Carrier VS ICP the same? ; https://www.youtube.com/watch?v=cpnoDiQ3R9I

The FB4CNF024 normally connects to a 13 SEER Heat Pump.

The only important part is before the last A. It gets broken into two parts, xxABA, and *** (where x is any number)
24ABA:
24A = A/C (24H would be heat pump)
B= Base series, C would be Comfort, P would be Performance and N would be Infinity. (B, C, P, N in that order gives you more bells and whistles)
3rd letter = A (puron) or B (R22).
342:
First number = SEER 3 = 13, 6 = 16, 1 = 21.
42 = btu in thousands (18-60)

This means that your unit is a 13 SEER, 42,000 BTU base-model Air Conditioner which uses Puron (R410 refrigerant).

That is a 5 ton system but I do not know the SEER rating. See that 060 in the middle of the model number? That means 60,000 BTU or cooling capacity and that is 5 tons.

It's entry level with regard to efficiency. At the same time, it's not a bad piece of equipment. Made by Carrier ICP. I've installed many of these. I suspect since you had your house foamed, it's probably not costing you a heck of alot to heat or cool- so it would be hard to justify changing it just to add seer points. It would be difficult to get a pay-back on your investment. I say roll with it and enjoy your new home!

No , this is a 6 ton Carrier unit , and the SEER is 10

Here you go........... Please let us know if this helped. Good Luck!

http://docs.google.com/viewer?a=v&q=cache:hgFL7TiRe6wJ:www.docs.hvacpartners.com/idc/groups/public/documents/techlit/50zh-07si.pdf+Carrier+50ZH+pdf&hl=en&gl=us&pid=bl&srcid=ADGEESipu-m833kZfEVaQJmsWYvqmUq_PrshZKF4jVMk1H1pOFCmLYzS9dyqpbA4gui4l1SG9-1hRheueTqEyNQRz4J2kuF9359qhNOHTRiPJVP2EAcAD4d30Vr3lurfYxZl4fvbiJmO&sig=AHIEtbRDeqZz8eFHodZtwqt2mMY08y8QNQ

that is a three ton unit and most likely a 10 seer rated seer rating are posted 6 months in cool and 6 months in heat to get the number on the unit if you are more interested in heating rating of heat pumps the aher or annual heating efficiency rating is of the most importance in this category the unit posted very well