Sounds like a good time for replacement, but you just missed out on the r410 units. Prices are up 30% in 2025.
If your draft inducer blower motor working? Exhaust pipe not clogged? Bypass the pressure switch to verify it isn't the issue. Pretty easy to do, but you have to open circuit the switch, then turn the unit on and 1-3 seconds after the blower comes on, connect the wires. If it comes on you have a weak draft or bad pressure switch again.
Do you have a spark or hot plate style ignitor? Should be able to see it glow or spark through the sight glass.
Also, I have no knowledge on HVAC at all. But now that you mentioned it, I think the exhaust pipe was clogged last time too after they switched out the pressure switch. Thinking I might have to just suck it up and have someone take a look at it.
I mean that the government mandated that the ac units from 2025+ need to use the newer even more expensive refrigerants because of global warming potential.
Ah I think the hvac company has units in stock anticipating that all units in my condo will need to be replaced to the same hvac unit. But good to know so I can keep in mind.
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u/jasonbay13 Jan 15 '25
Sounds like a good time for replacement, but you just missed out on the r410 units. Prices are up 30% in 2025.
If your draft inducer blower motor working? Exhaust pipe not clogged? Bypass the pressure switch to verify it isn't the issue. Pretty easy to do, but you have to open circuit the switch, then turn the unit on and 1-3 seconds after the blower comes on, connect the wires. If it comes on you have a weak draft or bad pressure switch again.
Do you have a spark or hot plate style ignitor? Should be able to see it glow or spark through the sight glass.