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HVAC Service Call: Daikin VRVIII Heat Pump Not Cooling/Heating (Error Code J4) Daikin Inverter A1P 

Jumper man Tech
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30 окт 2024

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Комментарии : 35   
@alpha-omega337
@alpha-omega337 2 года назад
These VRV/F units are standard over here in Europe. Sucks to work on them because they're so difficult to properly diagnose. good job on your hand!
@stueyknuxx
@stueyknuxx 7 месяцев назад
Same here in Australia, everywhere ! They aren't too bad if you have the right tools, the service tools aren't cheap but if you're doing VRV's all the time its well worth it !
@LC-qi5ff
@LC-qi5ff 2 года назад
Well done, these vrv’s are not easy to work on
@MrTurkeyslayer7
@MrTurkeyslayer7 2 года назад
I work on these from time to time but mostly lg vrf. I would highly recommend getting the service tool for these. For troubleshooting and viewing purposes they sell a service tool that is connected via wifi to their app and you can control all indoor heads and monitor all live conditions. You would have seen a missing thermistor value or a thermistor value of max resistance value if you had the tool. It saves lots of time and frustration
@illillillillila
@illillillillila 2 года назад
On those Binary systems, H2P and H3P stays solid, that means you have an error and must get the code from the Navigation Controller (thermostat). The Green light you're seeing are normal light communicating with the inverter board (inverter compressor) and the main PCB Board (A1P). I'd suggest downloading Daikin Tech Service App. Useful app, hopefully you have a Daikin service checker with the computer program, if not goodluck.
@wd8557
@wd8557 2 года назад
Good job. Their is a guy on here Bon MJ , he is the VRV GURU hands down period best on here. Give him a watch
@EverythingHVACR
@EverythingHVACR 2 года назад
Nice work, we are seeing more and more of these units out there.
@sherwinalvarez7365
@sherwinalvarez7365 2 года назад
Great video. Hate mini spilts but you made it look easy. I must say i cant wait to see you running all those thermistors. It gets tight in there.😒
@im_al9274
@im_al9274 2 года назад
H3P indicates normal operation. A solid H2P indicates a fault with the system. Nice troubleshooting but fyi I would download the Daikin service app next time as it will be your go too for Daikin equipment and troubleshooting. We use this in the UK hope this helps. 👍🏻
@SupremeRuleroftheWorld
@SupremeRuleroftheWorld 2 года назад
the green flashing is the heartbeat signal. it means the communication between the boards works and the processing on the board has not crashed.
@nicolerennie
@nicolerennie 2 года назад
wow difficult all around. you did a great job JMT👏🏼👏🏼👏🏼
@joshperez7731
@joshperez7731 2 года назад
Very knowledgeable, love watching your videos man, helps me trouble shoot units. I've always hated daikin because they're intimidating af and you always have to call tech support, but you broke it down so easily.
@thesilentonevictor
@thesilentonevictor 2 года назад
Great troubleshooting jmt
@kennethlobo4420
@kennethlobo4420 2 года назад
Great trouble shooting. God Bless.
@come_on_now
@come_on_now 2 года назад
Nice work on the servicing of that unit! You appear to be a very thorough service tech. I can afford to pay you $60 per hour here in California. LMK
@johnwalker890
@johnwalker890 2 года назад
Good job Jumper.
@BridgeWater94
@BridgeWater94 2 года назад
Love your videos man, as a green hvac tech I’m learning so much. I really wish I could have a experienced tech by my side to learn from. I work for a grow facility in Michigan and am the only HVAC tech on site. Work on RTUs chillers AHUs ect. A lot of commercial stuff. Learning day by day it’s def fun.
@izzybell11
@izzybell11 2 года назад
Great job JMT. Interesting and helpful video.
@jaimekeeham7087
@jaimekeeham7087 Год назад
Excelente video , you really help all of us
@weld3z
@weld3z 2 года назад
How old is this unit approximately ? I mean for VRV/VRF after how long you expect troubles to start if running 24/7
@Modello40
@Modello40 2 года назад
We used to change thermistor packs and valve heads every three years when doing hotels. Can’t remember definitely, but I think daikin recommend every 5k running hours
@weld3z
@weld3z 2 года назад
@@Modello40 Thanks so we can expect 5 to 7 years before replacing the hole unit.
@Modello40
@Modello40 2 года назад
@@weld3z that’s ok. Thankfully not. I’ve been working on vrv systems from 2002/2003 that are still going strong. Boards are getting harder to find on the k and l series daikins, but thankfully things like the fan motor boards on 3’s are replaceable still. The new boards just need a new wring harness. I will say though, the newer R32 stuff is not as good as their older stuff. Especially the sky air model. The main board is from a vrv4 and the heatsink thermistor fails. You can’t change that one out as it’s built into the board. Daikin are aware and have released a document highlighting which batches were affected.
@johntolley851
@johntolley851 2 года назад
Not sure if you work for daikin but we have an app for the light diagnostic
@truthmatters6719
@truthmatters6719 Год назад
Good job mate! What's that app called?
@kashifiqbalzafar
@kashifiqbalzafar 2 года назад
Hello sir, Can we change 3ph-380v-60Hz compressor of 64LRA, by 3ph-380v-60Hz compressor of 87 LRA
@eldar.sultanbayev
@eldar.sultanbayev 2 года назад
Great job!
@Cpt_bike_riders
@Cpt_bike_riders 11 месяцев назад
You gonna count for 100 years man😅. If h2p is lit up thats your error indicator.
@roceloi
@roceloi 2 года назад
Impressive machines! it looks cool! i will suscribe
@mikemalone6103
@mikemalone6103 Год назад
You need to have confidence in your diagnosis the thermistor was bad…. Not the shotgun method. I would check the thermistor itself, I’ve had the wires break all but one thread, or fall out…. Keep looking.
@eastlandgin
@eastlandgin 2 года назад
Looks pretty ridiculous that a they put all the thermistors on 1 wiring harness. 1 bad thermistor requires changing them all. Also, it's such an extremely difficult area for someone to work in. You have to climb over other units, no access to the sides and a several foot drop at the access panels. Installers are assholes. Should never been approved in that location.
@mdtec9458
@mdtec9458 2 года назад
hi where you from ?
@abdullah_q8171
@abdullah_q8171 2 года назад
Why vrv always hang down ?
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