Good reminder to always check components before energizing a new board... if it's not under warranty and it's only for the condenser fan mtr, trash it and let the fan roll with the compressor call. That percentage of Seer loss is about 2 bucks a month on the electric bill, if that...And the board will never fail again.scratch all that for a DC fan... carry on brother!
I tried to convince the homeowner to let us just install an aftermarket condenser fan motor rather than do all this but he said he’ll do it if it fails again
Does the unit have any surge protection installed for it? Inverters do not like voltage spikes/surges/brown outs. Protection should be considered mandatory for inverters.
This one doesn't. We told the homeowner we recommend it AND showed him our communications with the supplier who also recommended it and he still declined. In this case I suspect moisture due to the access panel not being screwed on but I agree with the need for surge protection on inverters
This is what you call stuffing 15lbs in a 5lb can. This is poorly engineered for marketing. Make it so the board is a part of the fan motor with a temp sensor to the coil and all you do is provide 240vac on startup. Nice vid on explaining.
Wait, it's got an inverter just for the condenser fan? Youd be better off with an icm spped controller. Also inverters or VFDs dont like heat, they need to incorporate some kind of cooling if they sre going to be putting boards like that in equipment
Overengineered BS. I think they had a couple engineers that they asked to build a system with a really inefficient compressor that still hit minimum standards. This is a Midea unit rebranded as AC Pro. It is the cheapest unit you can buy and it has an inverter board🤯
@@SurfBrosHVAC right. Like even big box cars don't have drives for their condenser fans. I could see running the compressor on an inverter but not a small half horse condenser fan
I'd ditch the board and motor if out of warranty and go with a psc and a capacitor. Depending if it's communicating if it is id replace the control board at the furnace with a non communicating board.
It was like 6 months old. Non communicating 24v signal board inside and outside. Definitely in warranty. Dude opted to wait like 2-3 weeks for this board I told him would fail again rather than get a new motor
I do hvac also. I agree that manufacturers are making things too complicated just to get a little more efficiency out of them. Thanks to the government mandates of higher seer units. I've already bypassed vfd drives in 1-2 year old units for condenser fans in commercial rooftop units because customers want reliable units instead of repeat failures.
Good reminder to always check components before energizing a new board... if it's not under warranty and it's only for the condenser fan mtr, trash it and let the fan roll with the compressor call. That percentage of Seer loss is about 2 bucks a month on the electric bill, if that...And the board will never fail again.scratch all that for a DC fan... carry on brother!
I tried to convince the homeowner to let us just install an aftermarket condenser fan motor rather than do all this but he said he’ll do it if it fails again
I was waiting for your beverage to spill and short out the board. That would have been EPIC. 😮❤
I almost always have a cup of coffee on me. Only place it ever spills is on myself
I always keep my clamp on amp meter on the power wires to that board/fan motor on first start to ensure nameplate rating is not exceeded.
Does the unit have any surge protection installed for it?
Inverters do not like voltage spikes/surges/brown outs.
Protection should be considered mandatory for inverters.
This one doesn't. We told the homeowner we recommend it AND showed him our communications with the supplier who also recommended it and he still declined. In this case I suspect moisture due to the access panel not being screwed on but I agree with the need for surge protection on inverters
This is what you call stuffing 15lbs in a 5lb can. This is poorly engineered for marketing. Make it so the board is a part of the fan motor with a temp sensor to the coil and all you do is provide 240vac on startup. Nice vid on explaining.
Wait, it's got an inverter just for the condenser fan? Youd be better off with an icm spped controller. Also inverters or VFDs dont like heat, they need to incorporate some kind of cooling if they sre going to be putting boards like that in equipment
Overengineered BS. I think they had a couple engineers that they asked to build a system with a really inefficient compressor that still hit minimum standards. This is a Midea unit rebranded as AC Pro. It is the cheapest unit you can buy and it has an inverter board🤯
@@SurfBrosHVAC right. Like even big box cars don't have drives for their condenser fans. I could see running the compressor on an inverter but not a small half horse condenser fan
I'd ditch the board and motor if out of warranty and go with a psc and a capacitor. Depending if it's communicating if it is id replace the control board at the furnace with a non communicating board.
It was like 6 months old. Non communicating 24v signal board inside and outside. Definitely in warranty. Dude opted to wait like 2-3 weeks for this board I told him would fail again rather than get a new motor
minimum efficiency inverter board??? what in mothers milk
That’s what I’m saying
That unit is way too close to the house.
@@criticaltemperature3343 Oh yeah that’s a given
I do hvac also. I agree that manufacturers are making things too complicated just to get a little more efficiency out of them. Thanks to the government mandates of higher seer units. I've already bypassed vfd drives in 1-2 year old units for condenser fans in commercial rooftop units because customers want reliable units instead of repeat failures.