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I have a Lennox heart pump that has a short cycling fault,

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what could be the possible...
I have a Lennox heart pump that has a short cycling fault, what could be the possible problem with this unit. It's only 4 years old.
Submitted: 8 years ago.Category: HVAC
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Answered in 1 minute by:
6/25/2010
HVAC Technician: freon, Licensed A/C Contractor replied 8 years ago
freon
freon, Licensed A/C Contractor
Category: HVAC
Satisfied Customers: 215
Experience: 22 years Licensed Contractor State of Texas
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freon :

Did you have a tech add refrigerant this past winter?

Customer:

yes, my system was serviced (I have a maintenance contract) he also checked the refrigerant yesterday

freon :

Ok, there is a good chance that the tech who added refrigerant during the winter overcharged the system and now it is cycleing on the hi pressure switch. Are you running in heating now or cooling?

freon :

Their are folks up in the northern region that are still using heat!

Customer:

cooling....The tech said on the invoice "Found unit lockout due to short cycling fault. Cleared fault. Checked unit operation, no cause found at this time". So basically the unit started up after he cleared the fault, then stopped again.

freon :

Call the company back out and have him check the system in cooling mode, using the sub cooling method and the super heat method. The unit must have documented the type of fault. Example: hi pressure fault, low pressure fault, low voltage fault ect.

freon :

You should not have to pay again.

freon :

All faults and calls must be taken seriously and checked out with proficency. Other wise time and money are wasted.

Customer:

Yes, I will do that. Thanks for your help!

freon :

The tech did not show the type of fault on the invoice.

freon
freon, Licensed A/C Contractor
Category: HVAC
Satisfied Customers: 215
Experience: 22 years Licensed Contractor State of Texas
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freon, Licensed A/C Contractor
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