Service

Plan Installation and After-Sales Support Before Delivery

Plan installation, ATS transfer, low-voltage distribution, fuel autonomy, commissioning, spare parts and technical response before handover. Then every alarm follows a clear path to remote diagnosis, parts preparation or on-site service.

Get an Installation and Service Plan Review the Engineering Service Commitment

Installation and commissioning Critical-load support Spare-parts planning Remote diagnostics and on-site coordination

Service commitment

Engineering commitment: a HOHANK engineer follows the project from equipment arrival through stable operation.

The engineering service process documents installation, commissioning, remote diagnostics, spare-parts confirmation, on-site service and cost boundaries so every case follows the same evaluation, coordination and reporting method.

Installation and commissioning supportRemote diagnostics and inspectionSpare-parts confirmationOn-site service coordination

Service area HOHANK support

01 Installation and commissioning support

HOHANK engineers prepare an installation checklist covering foundations, lifting, grounding, cables, fuel, ventilation, exhaust, low-voltage distribution and ATS or paralleling interfaces.
The engineering team provides controller, wiring, maintenance-interval, recommended-spares and commissioning information for the pre-operation review.
Engineers review photographs and connection conditions remotely to identify installation, wiring, ventilation, fuel and safety corrections before commissioning.

02 Scheduled remote inspection

The service team tracks runtime, alarms, voltage, frequency, load percentage, oil pressure, temperature and maintenance in a traceable record.
Engineers identify abnormal trends in batteries, fluids, cooling, communications, load changes and overdue maintenance and issue preventive reminders.
Where no remote module is installed, the engineering team provides periodic data templates and photo checklists to maintain a continuous operating record.

03 Remote operating-fault diagnostics

Engineers classify the fault using alarms, controller status, operating parameters, load changes and maintenance records.
The engineering review distinguishes issues suitable for remote guidance from those requiring shutdown inspection, on-site service or spare-parts preparation.
Engineers provide temporary risk-control guidance that prioritizes electrical safety, equipment protection and the order of critical-load recovery.

04 Critical-load support

Engineers identify impacts on ICUs, operating rooms, fire and security systems, elevators, cold chain, production, UPS, cooling and communications.
Engineers help the site team set temporary priorities: loads that must remain powered, can wait, require staggered starting or should be isolated.
Engineers define a temporary operating sequence, transfer recommendations and follow-up checks that the site can safely carry out.

05 Spare-parts model confirmation

Engineers verify filters, belts, sensors, controllers, AVRs, electrical parts, starting systems, circuit breakers and battery chargers.
Engineers classify spares as routine, critical or project-specific based on fault impact, procurement lead time and shutdown risk.
The engineering team confirms alternatives, stock recommendations and lead times to reduce wrong-part orders, shortages and waiting-related downtime.

06 On-site service coordination

When remote diagnostics are inconclusive, HOHANK engineers determine whether the site needs mechanical, electrical, ATS, paralleling or installation-safety support.
The service team organizes the service scope, required skills, spare parts, tools, shutdown window and likely repair path.
The engineering service team coordinates personnel, spare parts and service timing to reduce unproductive visits, repeated communication and recovery time.

07 Warranty and cost boundaries

Service engineers assess coverage using the contract, factory documents, equipment condition, operating records and fault cause.
The service review distinguishes warranty coverage, paid service, spare-parts purchases, installation issues, overload operation and operator-related causes.
The engineering team documents the basis for cost evaluation and quotation so purchasing, site teams and management understand responsibilities and boundaries.

Warranty coverage, spare-parts pricing and on-site service costs depend on the contract, factory documents and the confirmed fault.
Electrical-safety, fuel-system and mechanical-disassembly work must be performed by qualified personnel.

Frequently asked questions

How Should Backup Power Service Change by Facility Type?

After an outage or fault, the first questions are whether critical loads can recover, whether the risk can escalate and whether an engineer is needed on site. Priorities differ across hospitals, shopping centers, factories, hotels, educational facilities, data centers and livestock operations; these FAQs help define the impact and next step.

General service

General service questions

Covers automatic starting, installation, commissioning, alarms, spare parts, response, testing, maintenance records and long-term support to build a recoverable, maintainable backup-power system.

01General service

Why Does a Standby Generator Fail to Start Automatically During an Outage?

Common causes include the starting battery, controller mode, fuel supply, ATS signal, protective alarms or insufficient testing. First separate a generator-start failure from a transfer-chain failure.

Read the Full Answer 02General service

What Is Most Often Missed During Installation and Commissioning?

Commissioning must verify foundations, grounding, fuel, exhaust, ATS wiring, low-voltage distribution and critical-load recovery. A single no-load start does not prove the system is ready.

Read the Full Answer 03General service

After an Alarm, When Is Remote Diagnosis Enough and When Is a Site Visit Required?

First assess electrical safety, critical loads and equipment risk. Remote diagnostics classify and narrow the problem; high-risk electrical, mechanical or distribution issues require on-site work.

Read the Full Answer 04General service

How Should Common Spare Parts for a Commercial Generator Be Planned?

Prioritize spares by runtime, fault impact, procurement lead time and recovery target so a missing or incorrect part does not extend downtime.

Read the Full Answer 05General service

What Site Information Helps an Engineer Diagnose a Fault Faster?

Report the time, alarms, transfer status, affected loads and visible abnormalities to locate the fault section and reduce misdiagnosis, waiting and repeat visits.

Read the Full Answer 06General service

How Should Response Times and Service Scope Be Confirmed Before Purchase?

Define remote diagnostics, site attendance, spare-parts supply, shutdown windows, urgent response and service boundaries before purchase, not after a failure occurs.

Read the Full Answer 07General service

How Often Should a Standby Generator Be Tested and Maintained?

The interval depends on runtime, load criticality, environment and outage risk. Even lightly used equipment needs scheduled starts, load testing and reviewable records.

Read the Full Answer 08General service

Why Keep Inspection, Test and Repair Records?

Records reveal battery, oil-pressure, temperature, alarm, transfer and load trends so engineers can identify risks before shutdown and shorten fault diagnosis.

Read the Full Answer 09General service

How Can You Tell Whether a Supplier Can Support Long-Term Operation?

Long-term capability means understanding the load scenario, power chain, spare-parts logic, inspection method and fault review—not simply selling equipment or promising a warranty.

Read the Full Answer

Hospitals

Backup Power Service for Hospitals

Hospital service prioritizes ICUs, operating rooms, diagnostic imaging, medical cold chain, information systems and safety loads to protect patients and clinical continuity.

01Hospitals

If the Generator Starts, Why Can the ICU and Life-Support Loads Still Lose Power?

A successful start only proves that the generator is running. It does not confirm that ICU circuits, the ATS, UPS, switchboards and final distribution have transferred correctly.

Read the Full Answer 02Hospitals

When Operating-Room Transfer Fails, Should the ATS, UPS or Distribution Be Checked First?

The fault is rarely at one point. Review utility loss, UPS ride-through, generator start, ATS transfer and clean-room HVAC recovery in sequence.

Read the Full Answer 03Hospitals

Why Check Starting Impact and Voltage Stability When Medical Equipment Alarms?

CT, MRI, laboratory lines and research equipment are sensitive to voltage stability, starting impact and grounding. The alarm may not originate in the medical device itself.

Read the Full Answer 04Hospitals

When the Medical Cold Chain Alarms, How Should Temperature, Power and Fuel Autonomy Be Assessed?

For medicines, vaccines, blood and samples, assess temperature margin, cold-chain load recovery, generator operation, remaining fuel and the refueling route together.

Read the Full Answer 05Hospitals

If HIS, PACS or Billing Systems Go Offline, How Do You Check the UPS-to-Generator Handoff?

Possible causes include insufficient UPS ride-through, unrecovered room cooling, loss of core-network power or a fault in the generator transfer chain.

Read the Full Answer 06Hospitals

Why Review Load Zoning for Fire Pumps, Elevators and Emergency Lighting?

Hospital safety loads are spread across floors and circuits. Generator output does not prove that fire pumps, elevators, water and emergency lighting are on the correct backed-up circuits.

Read the Full Answer 07Hospitals

How Often Does a Hospital Need Load Testing and Inspection Records?

A hospital must demonstrate availability under real load through scheduled exercises, load tests, ATS transfer records and maintenance records.

Read the Full Answer 08Hospitals

Which Generator Spare Parts Should a Hospital Prioritize?

The spare-parts plan should cover service consumables, starting systems, electrical controls, the ATS and components that could delay critical-load recovery.

Read the Full Answer 09Hospitals

During a Hospital Power Fault, When Is Remote Diagnosis Appropriate and When Is On-Site Service Required?

Alarms that do not affect critical loads can be reviewed remotely. If ICUs, operating rooms, fire systems, elevators or electrical safety are affected, on-site service should be arranged promptly.

Read the Full Answer

Shopping centers

Backup Power Service for Shopping Centers

Shopping-center service considers safety, transactions, visitor flow, parking, refrigerated food and peak events to avoid operational losses and site-control problems.

01Shopping centers

After a Shopping-Center Outage, Why Is Confirming Generator Start Not Enough?

Outage losses affect transactions, safety, visitors and tenant systems. After the generator starts, verify ATS operation, distribution zones and critical-load recovery.

Read the Full Answer 02Shopping centers

When POS and Tenant Checkout Systems Fail, Which Low-Voltage Links Should Be Checked First?

POS continuity depends on the payment network, switches, communications room, UPS and tenant circuits—not just the checkout terminal.

Read the Full Answer 03Shopping centers

When Fire, Security or Emergency Lighting Fails, Why Check the ATS and Distribution First?

Shopping-center safety loads are widely distributed. Fire pumps, CCTV, public address, access control and lighting may depend on different circuits.

Read the Full Answer 04Shopping centers

When Restoring Elevators and Escalators, Why Do Starting Impact and Sequence Matter?

Their starting demand is high. The wrong sequence can cause frequency variation, breaker trips or problems moving and evacuating visitors.

Read the Full Answer 05Shopping centers

If Parking Exits Back Up, Why Check Barriers, Payment Systems and the UPS?

The outage may involve barrier controllers, license-plate recognition, payment computers, switches or basement ventilation and lighting that did not transfer.

Read the Full Answer 06Shopping centers

When Refrigeration, Food-Service or Supermarket Loads Alarm, How Should Food Safety, Power and Fuel Be Assessed?

Review temperature margin, compressor starting, kitchen exhaust, power recovery, fuel autonomy and refueling access together.

Read the Full Answer 07Shopping centers

Why Perform a Special Backup-Power Inspection Before Holidays or Major Events?

Visitor traffic, transactions, parking, food service and temporary event loads all rise on peak days. A system that works normally may not withstand the combined risk.

Read the Full Answer 08Shopping centers

Which Business-Critical Loads Should Guide a Shopping Center's Generator Spare-Parts Plan?

The spare-parts plan should support safety, transactions, parking, cold chain and peak-day recovery—not just the kit supplied with the generator.

Read the Full Answer 09Shopping centers

How Can On-Site Service Costs Be Controlled Before Business Interruption Grows?

Repair cost may be compounded by closure, tenant compensation, transport, nighttime service and peak-day response costs.

Read the Full Answer

Factories

Backup Power Service for Factories

Factory service prioritizes production recovery order, control chains, large-motor starting, temperature-sensitive processes, utilities and system limits after expansion.

01Factories

After a Generator Fault, Why Define the Production-Recovery Order First?

The wrong restart sequence can cause a second shutdown, lost product or interlock alarms. Service must consider more than whether the generator produces power.

Read the Full Answer 02Factories

When a PLC or Control Panel Fails, How Do You Separate Power, Communications and Equipment Problems?

The cause may be the UPS, control power supply, voltage variation, grounding, communications or sensors—not necessarily the PLC itself.

Read the Full Answer 03Factories

If a Compressor or Large Motor Fails to Start, Why Is Generator Power Rating Not Enough?

Starting current, starting method, staged loading, breaker protection and generator transient response all matter—not just running power.

Read the Full Answer 04Factories

When Cold Storage or a Temperature-Controlled Process Alarms, How Do You Separate Load, Fuel and Generator Issues?

Correlate refrigeration starting, temperature trends, fuel autonomy, load sequence and generator operating condition.

Read the Full Answer 05Factories

After an Outage, Which Pumps, Environmental Systems and Utilities Cannot Wait?

Circulating water, wastewater treatment, fire pumps, boiler auxiliaries, process water and compressed air may determine safety, compliance and restart conditions.

Read the Full Answer 06Factories

Why Evaluate Fire Protection, Exhaust and Alarms Separately from Production Loads?

Fire protection, emergency lighting, hazardous-area exhaust, access control and alarm systems should not be displaced by ordinary production loads.

Read the Full Answer 07Factories

After a Factory Expansion, Where Do Risks Increase in the Existing Generator System?

New loads, existing distribution capacity, paralleling controls, maintenance windows and spare-parts needs can all change. Without review, system limits emerge during a fault.

Read the Full Answer 08Factories

How Should Spare Parts Be Planned Around Production, Controls and Utilities?

The plan should cover generator maintenance, control systems, electrical protection, large-motor starting and continuous operation of utilities.

Read the Full Answer 09Factories

During an Industrial Fault, When Is Remote Support Appropriate and When Is an On-Site Engineer Required?

Abnormal parameters, alarm confirmation and simple operations can be reviewed remotely. Complex electrical work, mechanical disassembly, large-motor starting and safety risks require an on-site engineer.

Read the Full Answer

Hotels

Backup Power Service for Hotels

Hotel service balances guest experience, safety loads, nighttime response, kitchen cold chain, HVAC, water, noise and exhaust.

01Hotels

After a Hotel Outage, Why Consider Guest Experience and Safety Loads Together?

An outage affects room lighting, elevators, door locks, front desk systems, water, HVAC and guest support. It is more than an equipment fault.

Read the Full Answer 02Hotels

During a Nighttime Outage, How Should Elevators, Door Locks, Front Desk and Communications Be Prioritized?

At night, guest concern escalates. Elevator evacuation, door locks, PMS, payments, CCTV and network services must recover according to safety and service priorities.

Read the Full Answer 03Hotels

If Guest Rooms Have Power but the Front Desk Is Down, Which Links Should Be Checked First?

The fault may involve the PMS, payment systems, door-lock server, core switch, communications UPS or technical-room cooling.

Read the Full Answer 04Hotels

When Kitchen, Cold-Storage or Event Loads Alarm, Why Review Fuel Autonomy Too?

Food-service loads rise during breakfast, events and peak season. Cold-room temperature, kitchen exhaust, pumps and fuel autonomy must be assessed together.

Read the Full Answer 05Hotels

Why Should Hotel HVAC and Ventilation Not Be Reconnected All at Once?

The starting impact is high. Reconnecting the entire building at once can overload the generator, destabilize frequency or trip breakers.

Read the Full Answer 06Hotels

If Water, Hot Water and Drainage Stop, What Should the Engineer Check First?

Check domestic-water pumps, hot-water circulation, drainage, fire pumps and distribution zones because the interruption quickly affects guests.

Read the Full Answer 07Hotels

Why Does a Hotel Generator Require Special Attention to Noise, Exhaust and Installation Conditions?

When the generator is near guest rooms, kitchens, parking or service floors, noise, exhaust, heat rejection and maintenance access directly affect serviceability.

Read the Full Answer 08Hotels

Before Peak Season, Which Generator Spares and Consumables Matter Most for Recovery?

The plan should cover generator maintenance, starting systems, controllers, ATS, water systems, communications and peak-season response.

Read the Full Answer 09Hotels

Why Perform a Special Backup-Power Inspection Before Peak Season?

High occupancy, events and HVAC demand can turn a minor issue into guest complaints, operating interruption and higher recovery costs.

Read the Full Answer

Educational facilities

Backup Power Service for Educational Facilities

The service plan must let non-specialist staff inspect, record and report while covering IT, laboratories, residences, dining, safety and the academic calendar.

01Educational facilities

Why Should School Facilities Staff Be Able to Inspect the Backup-Power System?

Schools rarely have a specialist power team on site. The service plan must let facilities staff understand checks, keep records and report issues.

Read the Full Answer 02Educational facilities

After a Campus IT-Room Outage, Why Check the UPS Handoff Window First?

Campus networks, access control, CCTV, teaching systems and servers depend on the UPS until the generator takes over. An insufficient window causes system restarts.

Read the Full Answer 03Educational facilities

When Laboratory or Research Equipment Alarms, Which Safety Conditions Should Be Confirmed First?

An outage may affect fume hoods, sample storage, hazardous-material controls and operating authorization—not just the research equipment.

Read the Full Answer 04Educational facilities

During a Nighttime Dormitory Outage, Why Prioritize Lighting, Access Control and Network Service?

A nighttime outage affects safety and order. Lighting, access control, network, hot water and pumps should recover according to student-life risk.

Read the Full Answer 05Educational facilities

When Dining, Cold Storage or Water Systems Fail, How Should Food Safety, Recovery and Fuel Be Assessed?

Consider meal periods, food cold chain, water pumps, fuel autonomy and the site's ability to operate the system safely.

Read the Full Answer 06Educational facilities

Why Review Campus Lighting, Security and Public Address by Zone and Record?

These systems span multiple buildings. Zone-based checks and records prevent the assumption that the entire campus recovered power.

Read the Full Answer 07Educational facilities

What Should Be Checked Before a Semester, Before Exams and After School Breaks?

Outage risk follows the academic calendar. Review batteries, fuel, generator exercises, ATS operation and critical loads at these points.

Read the Full Answer 08Educational facilities

Why Should a School Generator Spare-Parts Kit Be Simple, Clear and Easy to Hand Over?

Facilities staff may change frequently. A complex or unlabeled kit can be misplaced, misused or impossible to identify during a fault.

Read the Full Answer 09Educational facilities

After a Staff Change, How Can a School Avoid Having No One Able to Operate the Backup System?

An incomplete handover leaves the generator, ATS, inspection forms and fault-reporting process without clear ownership and slows recovery.

Read the Full Answer

Data centers

Backup Power Service for Data Centers

Data-center service requires evidence for the UPS handoff window, ATS/STS, low-voltage distribution, cooling, fuel, paralleling redundancy, testing and remote monitoring.

01Data centers

Why Does Data-Center Generator Service Focus on the UPS-to-Generator Handoff Window?

The UPS only buys time. The generator, ATS/STS, low-voltage distribution and cooling must stabilize within that window to truly protect IT loads.

Read the Full Answer 02Data centers

If the Generator Starts but Racks Lose Power, Why Check ATS/STS and Distribution?

The interruption may be in the ATS/STS, PDU, switchboards, breakers, maintenance bypass or local distribution circuits—not necessarily the generator.

Read the Full Answer 03Data centers

If Cooling Does Not Recover, Why Are IT Loads Still at Risk?

Even with power restored, temperature rises quickly. Precision cooling, pumps, fans and controls must recover with the electrical supply.

Read the Full Answer 04Data centers

When Fuel Autonomy Alarms, Which Operating Data Should a Data Center Review?

Correlate day-tank and bulk-tank levels, level alarms, load percentage, runtime, refueling access and leakage risk.

Read the Full Answer 05Data centers

During a Paralleling Fault, How Are Synchronization, Load Sharing and Redundancy Evaluated?

Review synchronization conditions, load sharing, automatic start and stop, individual-unit status, breakers and controller communications.

Read the Full Answer 06Data centers

If N+1 Redundancy Looks Sufficient, Why Perform Load Testing?

N+1 on a drawing does not replace a real test. Load testing exposes starting, transfer, load-sharing, cooling and fuel-system problems.

Read the Full Answer 07Data centers

Which Generator and Distribution Data Should Remote Monitoring Collect?

It should cover the generator, ATS/STS, low-voltage distribution, fuel, cooling coordination, alarms and test records—not just video.

Read the Full Answer 08Data centers

How Should Critical Spares and Electrical Components Be Classified in a Data Center?

Classify them by impact: maintenance consumables, critical generator parts, electrical controls, ATS/STS and low-voltage components.

Read the Full Answer 09Data centers

In a Data Center, When Is Remote Diagnosis Enough and When Is On-Site Intervention Required?

Trends, alarms and some transfer records can be reviewed remotely; distribution safety, paralleling, breakers, ATS/STS and cooling faults usually require on-site intervention.

Read the Full Answer

Livestock operations

Backup Power Service for Livestock Operations

Livestock service reviews ventilation, temperature, water, feeding, incubation, aquaculture oxygenation, cold chain, biosecurity, wastewater, autonomy and remote-site support.

01Livestock operations

After a Farm Outage, Why Prioritize Ventilation, Cooling and Heating?

Ventilation fans, cooling-pad pumps, heating and temperature controls directly determine the animal environment. First assess allowable interruption time, seasonal risk and critical housing areas.

Read the Full Answer 02Livestock operations

When Water Pumps, Feed Lines or Control Panels Fail, How Do You Separate Power, Control and Equipment Issues?

Review the power circuit, control supply, sensors, communications, pump pressure and stall condition separately. Power at the motor does not prove the process is operating.

Read the Full Answer 03Livestock operations

During an Abnormal Transfer in Incubation, Brooding or Breeding Areas, Which Loads Cannot Wait?

Incubators, brooding temperature control, minimum ventilation, controllers and alarms have short tolerance windows. Verify the UPS, ATS and generator handoff first.

Read the Full Answer 04Livestock operations

After Aquaculture Aeration and Water Circulation Stop, What Should Be Checked First?

Assess dissolved oxygen, stocking density, essential aeration, water circulation and water-quality monitoring before defining zoned recovery and multi-motor starting.

Read the Full Answer 05Livestock operations

When Cold Rooms, Milk Tanks or Egg Storage Alarm, Why Check Fuel Autonomy?

Cold-chain risk depends on allowable temperature rise, outage duration, compressor starting and remaining fuel—not only whether the equipment restarts.

Read the Full Answer 06Livestock operations

Why Evaluate Power Zoning for Biosecurity, Wastewater and Site Monitoring Separately?

Access control, disinfection, wastewater pumps, aeration, CCTV and alarms may use little power, but they manage health, environmental and safety risks and should not be displaced by larger loads.

Read the Full Answer 07Livestock operations

How Should Fuel Autonomy, Refueling Access and Test Records Be Planned for a Remote Farm?

Calculate fuel use at the actual load and plan tank safety, refueling vehicles, rainy-season roads, minimum fuel level and testing during high-risk seasons together.

Read the Full Answer 08Livestock operations

How Should Generator Spares Be Planned Around Fans, Pumps, Controls and Cold Chain?

The spare-parts plan should cover generator consumables, starting systems, electrical controls, ATS, distribution and critical-load parts, prioritized by remoteness and seasonal risk.

Read the Full Answer 09Livestock operations

On a Farm, When Is Remote Diagnosis Appropriate and When Is On-Site Intervention Required?

Alarms, fuel level, operating trends and some transfer records can be reviewed remotely. Electrical risks, mechanical noise, leaks, repeated overheating, trips or unrecovered critical loads require on-site work.

Read the Full Answer

Engineering Support

Review Installation, Commissioning and Service with an Engineer

Provide the model, country and city, operating status, installation issue or fault, and required service timing. An engineer will review the information before defining remote support, spare parts or on-site service.

Contact an Engineer on WhatsApp

An engineer will review your information and contact you.

WhatsApp: +86 176 8575 2779