York Diamond 80 Furnace

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The discontinued York Diamond 80 was a single-stage gas furnace with an 80% AFUE rating. It features a computerized blower motor for even air circulation, a tubular heat exchanger, an integrated computerized control system, and an induced combustion system to promote quiet operation.

The Diamond 80 was available in up-flow/horizontal and down-flow models and was made of a thin structure, allowing it to fit into narrow spaces. The unit also featured a pre-painted, corrosion-resistant steel cabinet for maximum protection.

In 1997, York International recalled the 80 downflow mid-efficiency furnaces with model numbers starting with P2DP, PBKD, and XED02. Faulty gluing of the insulation surrounding the heat exchanger, potentially causing the cabinet wall to fall on the heat exchanger and start a fire led to the recall which covered 21,000 units.

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Consumer Reviews of the York Diamond 80

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Date created: 2011-12-09 Name: WATERPUMP
Years owned: 3

Satisfaction Rating:

Review:
"neutral"
Why do they go throw memory boards so often? I put one on about once a year: parts and labor: $196.00.

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Date created: 2011-05-02 Name: William S. Scott
Location: Jackson, WY
Years owned: 5

Satisfaction Rating:

Review:
"never again"
Had a York furnance installed when we built our new home. Uggggg! Problems every year. We eventually got a new service company and they confirmed our fears, too many of the York systems are not so good. We got one of the systems they said they see allot of issues with, Were replacing the entire set-up next week. We chose Trane after looking at Carrier and Lennox also. We'll see, many of our neighbors have Trane and they have had no problems.

Other Diamond 80 Reviews

The majority of online discussions about the York Diamond 80 center around furnace malfunctions or problems. Consumers on sites including answers.yahoo.com and gardenweb.com, report their heating unit stopped working for no apparent reason.

Some posters report having to replace parts and having subsequent problems develop.

Many people on doityourself.com wrote about problems with the blower motor malfunctioning sporadically, while even more contributors discussed miscellaneous system errors. One poster on doityourself.com complains that after owning a Diamond 80 for six years, the blower stopped functioning after the unit froze up. Most issues discussed online were solved with a new part, or a visit from a contractor.

York Diamond 80 Model Numbers

The Diamond 80 is available in different models which vary in efficiency and capacity.

Model Number	AFUE	BTUs per Hour
P4DNA12L03201	80	40,000
P4DNA12L04801	80	57,000
P4DNA12L06401	80	80,000
P4DNA12N03201	80	40,000
P4DNA12N04801	80	57,000
P4DNA12N06401	80	80,000
P4DNB12L08001	80	100,000
P4DNB12N08001	80	100,000
P4DNB16L06401	80	80,000
P4DNB16N06401	80	80,000
P4DNC16L09201	80	115,000
P4DNC16N09201	80	115,000
P4DNC20L08001	80	100,000
P4DNC20L09201	80	115,000
P4DNC20N08001	80	100,000
P4DNC20N09201	80	115,000
P4DND20L14001	80	130,000
P4DND20N14001	80	130,000
P4HUA12L03201	80	40,000
P4HUA12L04801	80	57,000
P4HUA12L06401	80	80,000
P4HUA12N03201	80	40,000
P4HUA12N04801	80	57,000
P4HUA12N06401	80	80,000
P4HUB12L08001	80	100,000
P4HUB12N08001	80	100,000
P4HUB16L06401	80	80,000
P4HUB16L08001	80	100,000
P4HUB16N06401	80	80,000
P4HUB16N08001	80	100,000
P4HUC16N09201	80	115,000
P4HUC20L06401	80	80,000
P4HUC20L08001	80	100,000
P4HUC20L09201	80	115,000
P4HUC20N06401	80	80,000
P4HUC20N08001	80	100,000
P4HUC20N09201	80	115,000
P4HUD20L10401	80	130,000
P4HUD20N10401	80	130,000

Diamond 80 Warranty

The Diamond 80 furnace is covered by a 20-year limited warranty on the heat exchangers, and a 5-year limited warranty on all other parts. Additional parts and labor coverage is available through the YORKCare Comfort Plan for up to 10 years.