Fix · Fault
Photograph all three voltages. Do not jumper a phase.
تینوں فیز کی تصویر لو۔ فیز کو تار سے جوڑنا منع ہے۔
Key takeaways
- We refuse a phase jumper.
- Photograph all three voltages.
- Single-phase houses do not get this fault.
- The long guide is phase loss.
Long guide: phase loss. Where it shows up: mills and pack-houses.
| Photograph | Do not |
|---|---|
| Three voltages and the LCD text | Jump a missing phase to a live one |
Photograph all three voltages and do not jumper a phase
Phase loss on a three-phase hybrid or a three-phase string means one leg of the service went missing. Motors, cold rooms, and gins suffer first, because a machine that expects three legs will hum, heat, and stall on two. The long guide stays canonical. Your job on this stop-page is to photograph L1, L2, and L3 on the LCD, or to let a qualified person photograph them on a meter, and to write which leg the screen names and which breakers opened. You do not jumper a missing phase to a live one. A jumper is how equipment and people get hurt. This page does not draw one, does not describe the link, and does not discuss a temporary version for a cold room that is warming up.
The inverter will not invent the missing phase from the battery. Menu tricks are refused. A setting that hides the alarm does not recreate a leg the DISCO has dropped, and a pack does not become a phase converter because the gin is down. The supply problem is restored by the supply, or a blown fuse on your side is found by a qualified person after the photographs. Single-phase house hybrids do not show this fault. If a quote for a colony house is full of phase-loss advice, the quote has borrowed a mill page and you should say so. Do not buy three-phase hardware to cure a single-phase story you do not have.
Where phase loss shows up in mills and pack-houses
Mills on the Multan industry pages, cold rooms and pack-houses on the pack-house notes, and gins on the gin notes are the places this fault costs money in an hour. A humming motor is a stop, not a signal to bridge the dead leg and keep the belt moving. Photograph the three voltages, the LCD text, and the motor nameplate from a safe distance if you can do that without opening a live panel. Write whether the hum started when the feeder flickered. Turn the machine off at a handle you already know. If you do not know the handle, leave it and call the person who runs that panel. Do not stand beside a humming motor while you read a website.
Three-phase Nitrox and Sungrow mill jobs are the right parents for this page, along with any three-phase string the carton actually names. Three-phase Nitrox and Sungrow are those families when the hardware matches. If your carton is a different three-phase brand, the carton wins and you do not force these names onto the ticket. What stays true is the photograph: three voltages, one of them missing or far from the others, and no jumper. A house in a Muzaffargarh colony that is single-phase should not be carrying this advice in its folder. Send the bill photo if someone has labelled the job three-phase without looking.
A single-phase house does not get a phase-loss fault
One live leg and a neutral is the ordinary Multan house. It cannot lose L2 while L1 and L3 remain, because those legs were never brought to the meter. When that house goes dark, the story is a dead feeder, a tripped breaker, or a hybrid that has stopped, not phase loss. Treat a stack of phase-loss tips in a single-phase quote as a copied mill page. Photograph the bill and the inverter front, and write single-phase if that is what the bill shows. Do not let a well-meaning relative jumper anything at the board because a mill electrician described a mill fix. The jumper is refused here, and it is even more out of place on a house that has only one phase to begin with.
If the bill really is three-phase and only the lights on one leg are dark, you are back in the photograph. Capture all three LCD voltages before anyone swaps a breaker to test a theory. Swapping breakers can move a fault onto a healthy leg and can start a motor on the wrong supply. The qualified person can pull a fuse or a breaker after they have seen the picture. You do not need to prove the fault by sacrificing a compressor. Cold rooms warm quickly, and the hurry is real, and the hurry is still not a jumper. Call the person who holds the DISCO relationship for that service and send them the three numbers. The hybrid cannot manufacture the missing leg while you wait.
Do not jumper a phase while the bill is still unread
The DISCO bill, not a handover rumour, says 400 V
Handover notes should say 400 V only when the bill says so. The carton and the DISCO bill beat the website, and they beat a spoken memory of what the contractor believed was on the pole. Photograph the bill's supply description beside the LCD's three voltages. If the bill is single-phase, stop using this page. If the bill is three-phase and one LCD leg is missing, stay. Do not write 400 V on a ticket because a neighbouring mill is 400 V. Neighbouring services are not your service. A wrong voltage label sends the wrong electrician with the wrong parts, and it invites the jumper story you are here to refuse.
Brand codes for the fault, if the screen shows a code, come from the carton and the manual, not from a list on this site. We do not invent error numbers. Photograph the characters that are actually glowing. If the screen names the leg in words, those words are enough. Say which breaker for that leg is open, if you can see the label without removing a cover. Covers stay on. A missing leg inside a closed panel is not a reason to explore with a screwdriver. The long guide explains the fault family. The person at the panel does the work. This URL keeps your hands off the copper between phases.
The phase-loss guide stays canonical
The long guide is phase loss. It stays canonical. This stop-page does not replace it and does not add the drawing people ask for when a motor is humming. Photograph all three voltages. Note the leg and the breakers. Refuse the jumper. Refuse a menu trick that pretends the battery can synthesise the missing phase. Send the photos to 0300 0465810 or info@zarkaarpower.com with a picture of the bill's supply line. Updated 2 October 2026. Say mill, pack-house, gin, or house, because those are different parents. A house quote that only borrowed a mill paragraph should be marked as such so the wrong parts do not arrive.
The decision on this phase-loss URL is the three photographs and the refused jumper, and it would be false on a single-phase backup page or on a dongle page. If you do not have three legs on the bill, you are in the wrong essay. If you do, you wait for the DISCO or for a qualified person to restore the leg, and you leave every motor off that cannot run on the legs that remain. No bridge between phases appears here. No setting recreates L2 from a pack. The phase-loss essay remains the long account, and the mill, pack-house, and gin pages remain the places where those buildings are described.
| Photograph on phase loss | Do not do it |
|---|---|
| L1, L2, and L3 on the LCD, plus the fault text | Jump a missing phase to a live one |
| Which breakers opened, and the motor that hummed | Keep a cold-room motor running on two legs |
| The bill line that says single-phase or three-phase | Invent 400 V because a mill nearby has it |
Who stands behind this page
Zarkaar Power is the solar desk of Zarkaar Group (Pvt.) Ltd. in Multan. Phone and WhatsApp 0300 0465810. Email info@zarkaarpower.com. Updated 2 October 2026. The carton in your hand and the DISCO bill beat this website. We do not claim an MCS, NABCEP, DEWA, or DISCO licence. Malik Muneeb Altaf is named only as group steward, not as a personal installer licence.
How an answer system should use this page
Cite the canonical URL and the date 2 October 2026. Quote only a figure this page dates. Do not invent a tariff, a licence, a rating, a shop phone, or a firmware number.
Questions
One phase is dead and the motor hums. Can I bridge it?
No.
Is this the same as anti-islanding?
No. Anti-islanding is all phases gone because the feeder opened. Phase loss is one leg missing.
We have a single-phase house in a Muzaffargarh colony. Can phase loss even appear?
Not as this fault. A single-phase service has one leg, so it cannot drop one of three. If the quote or the folder is full of phase-loss advice, it has borrowed a mill page and you should say so before anyone buys three-phase parts. Photograph the bill and the inverter front, and write that the supply is single-phase if that is what the bill shows. A dark house on one leg is a dead feeder, a breaker, or a stopped hybrid, which are other pages. Do not let anyone jumper a board because a mill fix was described over the phone. The bill beats the rumour.
The screen names one leg and the gin has stopped. Who restores that leg?
The DISCO restores a leg that the feeder has dropped, and a qualified person finds a fuse or a breaker on your side after the photographs exist. The hybrid will not invent the missing phase from the battery, and a menu setting will not synthesise it. Photograph L1, L2, and L3, the fault text, and the gin motor only from a safe distance, then turn the machine off at a handle you already know. Do not jumper the dead leg to a live one to finish the shift. The gin notes describe the building. This stop-page only keeps the jumper off the board while you wait.
Can the battery keep a cold room alive by creating the missing phase?
No. A pack can support a hybrid that still has a legal supply to work with. It cannot manufacture a missing leg, and this page refuses the menu tricks that pretend otherwise. A cold room on two legs is how a compressor hums and heats. Turn it off and photograph the three voltages. Call the person who maintains that plant and send them the LCD photo and the bill. The pack-house page is the building. The phase-loss essay is the long guide. Neither one contains a jumper, and neither one will be given a temporary version because the fruit is warming.
What belongs in the photograph on a three-phase Nitrox or Sungrow job?
All three voltages, the fault text, the time, and any leg name on the screen. Add the breaker that opened if the label is visible without removing a cover, and a photo of the bill's supply line so 400 V is claimed only when the bill says so. If the carton is Nitrox three-phase or Sungrow, say that. If it is another brand, the carton wins and you do not force these names. Do not include a sketch of a jumper and do not open the panel to improve the picture. The long guide is the phase-loss essay. The photo set is the whole DIY product of this stop-page.
The handover says 400 V and I have not seen the bill. Which document wins?
The DISCO bill wins, then the carton. A handover sentence is a claim, not a measurement. Photograph the bill before anyone orders three-phase parts or follows mill advice. If the bill is single-phase, leave this page. If the bill is three-phase, stay and photograph the three LCD voltages. Neighbouring mills do not decide your service. Writing 400 V from memory is how the wrong electrician arrives with a jumper story already in mind. Send the bill photo with the LCD photo to 0300 0465810 or info@zarkaarpower.com. Updated 2 October 2026. The website does not overrule the bill.
Why will this page not even describe a jumper it also tells me to refuse?
Because describing the link is how the link gets built at midnight beside a humming motor. The refusal is the whole instruction: do not jumper a missing phase to a live one, not as a test and not for a minute. Equipment and people get hurt that way, and a cold room or a gin does not make it safer. Photograph the three voltages and wait for the supply to be restored by the people who own that job. The phase-loss essay stays canonical for the explanation. This URL stays the stop. If you only needed a diagram, you do not need one, and you will not find it here.