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Poolservice123, CPO, CPI, CBP
Category: Pool and Spa
Satisfied Customers: 489
Experience:  40+ yrs, NSPF Instructor, NC Licensed SwimPool Contractor
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I got this Aqua Cal superquiet pool heater with code reading

Customer Question

JA: Hi. How can we be of help?
Customer: Hi. I got this Aqua Cal superquiet pool heater with code reading LP. Did a backwash and does stay on for just a little bit .
JA: Who manufactured the pool?
Customer: Paradise pool and spa
JA: Do you plan on doing the work yourself?
Customer: I took over the service on the pool on the 7th of November
JA: Anything else we should know to help you best?
Customer: As far is the owner said a fillter breack down was performed 3 months ago so i plan to do one my self to no where i stand with the pool. Pool is surrounded by vegetation where leafs buildup in the skimmer. Aparently the heater has had this problem before.
Submitted: 10 months ago.
Category: Pool and Spa
Expert:  Poolservice123 replied 10 months ago.

LP is low pressure for the refrigerant charge or the pressure switch is remaining open. This has nothing to do with flow error. An HVAC person can check the freon for you and if low they can add charge to it. But first check the pressure switch to be sure it has not failed. It can also be a clogged evaporator coil.