4 and 6 is NO so if don't have power is Open mean no continuity.

cool video but it doesn't get into 2 story homes or issues with homes that face the sun all day (and are subsequently far hotter) and need more cooling? what about fresh air or supply air and air returns or am I overthinking it? help!

thanks very good to know this ,,,,,,,even for an old retired tech LOL ,,,,

Will this setup allow the heat to work fine in the winter without the defrost?

Yo, my man the defrost condenser fan relay is normally closed, not normally open.

What if the switch trips on high temp well below the furance max temperature rise is hit? Short cycling... Is that a failure mode as well? Burners only stay on for a few mins at a time then temp drops a bit then they restart. Motor is new and filter is clean.

Great video. It really helps in understanding the operation of the Defrost Heat Pump Board.

This tutorial saved our lives literally, my hvac unit is now working after 3 technicians each 1 had the wrong diagnosis 1 said the motor bad Not! 1 said the 3 way valve is leaking Not! The other said bad thermostat Conjunction issue. Delay relay Bad, motor relay bad transformer bad and defrost board!

Fail!

hi, I want to modify my ac blower motor to start softly, is this method 2 capacitors will help?

If the house is 1268 sqft is and 3 ton is 1200 cfm why you put 2.5 ton ? I’m confused

Great video!

Excellent! Thanks

OMG

Thank you!!!

Thanks of you , i fix my problem, since now for me you are the Air Conditioner God, with hair on the chest, size 14.5 on shoes, the super saiyajin level 4 . My master … out of any joke thanks you . I safe lot money because of this video , everyone says is impossible and i need buy one new fan

thanks for this great Video I was struggling with one heat pump I was getting 24v but the board was not working well, after watching this video I end up bypassing it and it worked 😂

Great video!

Hella this just helped me do my service call HVAC life

Thank you so much for your video, I was able to check how to check my fan limit switch. it was really helpful.

Why does a new packaged heat pump freeze the txv and the condenser in heating mode when the ambient temperature is 31 degrees and it does not reach the temperature inside the house and when the ambient temperature is at 43 degrees the thermostat keeps the desired temperature in the house

The pointer stick is very helpful!

So, I wanted to bypass the defrost board for heating, then just leave the reversing as is.

Thanks.

Thx!

I am checking a wall Heater with a Meter I'm getting a reading from the terminal to the outside of the Element

You just made an apprentices day thank you

Element may not be burned out if it doesn’t ohm. Some elements have fused link on the insulators.

You are doing it wrong. Circuit opens when heated.

Works!!

So this would work on a while house fan??

Very good class

Two 16in flex ducts for a 2.5 ton system!? What blasphemy is this.

Does not show anything but a static picture of a partially disassembled unit. Should be retitled "theoretical steps involved in replacing a furnace gas valve" so that people searching for Hands-On directions and pro tips don't have to trip over this first

I am adding vaulted ceilings but will have closed cell spray foam on roof/walls and rim joists. Should I then still calculate for higher ceilings?

Excellent

Suck it good , sir.

Thank you so much

Good tips.

Simple and straightforward

Thank u sir! But i need to know about the schematic diagram of the control board. It will help to understand far better the in/out of the module and make eaiear its troubleshooting. Thank you sir.

You guys need to add this to the app store!

Everyone says to use .1 friction loss but I can’t find any answers as to why it’s .1 what makes this the nominal number to use?

You didn't clarify if continuity is good or bad. You just said how to test it. Is it normally open or normally closed?

What temp is the fan and limit supposed to be at?

Thank you sir. Your knowledge and experience is helping me with my AC system.

Thank you for sharing your knowledge..

Great videos. Can an ohms OL on a Solenoid cause the 3amp fuse in the AH to keep failing? Can’t get Low Voltage on Contactor, changed contractor, same issue.

I habe a 6 pin bt domt knw color code for it

I meed color Code for my sequencer