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BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22543
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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Billy, I have a 1992 Payne VCD0060. I had a full service cleaning

Customer Question

Billy, I have a 1992 Payne VCD0060. I had a full service cleaning done on Friday. A/C worked great. I did see initially the guys had a problem with start up but then I went back in. Today, it will not start. There is an LCD light that does 2 long blinks and 4 short blinks. I tried to follow the instructions to do a relay test but it didn't work. What is wrong with my HVAC?
Submitted: 2 years ago.
Category: HVAC
Expert:  BillyHvac replied 2 years ago.
Hello,
Can you take the doors off and locate the circuit board in the blower section?
Billy
Customer: replied 2 years ago.
Yes I see it. I can take a pic if you like
Expert:  BillyHvac replied 2 years ago.
Now next to the red light is a blade fuse like found in a car.
Remove that and look at side. The 24 code is telling us we may have a blown fuse
Customer: replied 2 years ago.
I don't see a fuse
Expert:  BillyHvac replied 2 years ago.
can you remove the metal piece hiding the rest of board?...do you see where the blinking light would be?
Customer: replied 2 years ago.
It's that little red LED in pic
Customer: replied 2 years ago.
2 longer blinks then 4 faster blinks
Customer: replied 2 years ago.
then repeat
Expert:  BillyHvac replied 2 years ago.
I cannot see it in the pic...all I see is the thermostat connections and the metal panel that hides the rest of board.
Customer: replied 2 years ago.
Expert:  BillyHvac replied 2 years ago.
ok see the red and blue wire at back edge?
Then the purple blade fuse in front of those wires? I can see in the pic it is blown and needs replaced
Customer: replied 2 years ago.
see arrow
Expert:  BillyHvac replied 2 years ago.
this is an older board so the fuse is not next to the light like on newer one. now from that arrow....move to the opposite end of the board...look for where a red and blue wire connect and then you will see a purple blade fuse.
If you can see it I will copy pi and mark
Customer: replied 2 years ago.
This?
Customer: replied 2 years ago.
Customer: replied 2 years ago.
Yep
Customer: replied 2 years ago.
3A?
Expert:  BillyHvac replied 2 years ago.
CORRECT....
Now replace that..but alo check the wires outside that go to ac (thermostat wires) and make sure no damage, chewed, weed wacked etc,
Then you should be all set
Customer: replied 2 years ago.
Okay I will run out and grab one and let you know.
Expert:  BillyHvac replied 2 years ago.
Get a 5 pack in case....
Customer: replied 2 years ago.
Okay update..... I grabbed the fuses. I put it in and it blew. Next time I put it in with the A/C off and I turned the blower from auto to on. The blower motor fired up. I turned on and off a few time without issue. Then when I flipped the A/C on the blower ran for maybe 15 seconds at the most and then the fuse blew.
Customer: replied 2 years ago.
Never heard the compressor......
Customer: replied 2 years ago.
You there? Heater fires up
Customer: replied 2 years ago.
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from yo. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  BillyHvac replied 2 years ago.
Ok,
did you inspect the wire out at the unit outside as mentioned previously?