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Owner’s Manual -  

B-VMH09,12,18,24DU-1 

 

  

 

15

Congratulations on purchasing your new HVAC equipment. It’s been 

designed for long life and reliable service, and is backed by one of the 

strongest warranties in the industry. Your unit automatically qualifies 

for the warranty coverage listed below, providing you keep your 

proof of purchase (receipt) for the equipment and meet the warranty 

conditions.
LIMITED ONE (2) YEAR EXPRESS WARRANTY

MARS warrants all parts of the VMH UltraV Series Ductless Mini-Split to 

be free from defects in workmanship and materials for normal use and 

maintenance for two (2) years from the date of purchase by the original 

consumer for the original installation. This Express Limited Warranty applies 

only when the Ductless Mini-Split is installed as a complete matched 

system: outdoor unit and indoor unit, and only when the system is installed 

per MARS installation instructions and in accordance with all local, state 

and national codes for normal use.

LIMITED 3rd to 7th YEAR EXPRESS WARRANTY

The compressor only is warranted to be free from defects in workmanship 

and materials for normal use and maintenance for five (5) additional years, 

for a total of seven (7) years from the date of purchase by the original 

consumer for the original installation. This Express Limited Warranty applies 

only when the Ductless Mini-Split is installed as a complete matched 

system: outdoor unit and indoor unit, and only when the system is installed 

per MARS installation instructions and in accordance with all local, state 

and national codes for normal use.

EXCEPTIONS

The Limited Express Warranty does not cover normal maintenance—

MARS recommends that regular inspection/maintenance be performed at 

least once a season and proof of maintenance be kept. Additionally, labor 

charges, transportation charges for replacement parts, replacement of 

refrigerant or filters, any other service calls/repairs are not covered by this 

Limited Warranty. It also does not cover any portion or component of the 

system that is not supplied by MARS, regardless of the cause of failure of 

such portion or component.

CONDITIONS FOR WARRANTY COVERAGE

• Unit must be operated according to MARS operating instructions

included with the unit and cannot have been subjected to accident,

alteration, improper repair, neglect or misuse, or an act of God (such as

a flood)

• Installation was done by a trained, licensed or otherwise qualified HVAC

dealer/contractor

• Performance cannot be impaired by use of any product not authorized

by MARS, or by any adjustments or adaptations to components

• Serial numbers and/or rating plate have not been altered or removed
• Damage has not been a result of inadequate wiring or voltage

conditions, use during brown-out conditions, or circuit interruptions

• Air flow around any section of the unit has not been restricted
• Unit remains in the original installation
• Unit was not purchased over the internet

DURATION OF WARRANTY & REGISTRATION

The warranty begins on the date of purchase by the original 

consumer. The consumer must retain a receipted bill of sale 

as proof of warranty period. Without this proof, the express  

warranty begins on the date of shipment from the factory.

Please visit www.marsdelivers.com 

to register your new product

REMEDY PROVIDED BY THE LIMITED EXPRESS WARRANTY

The sole remedy under the Limited Warranty is replacement of the defective 

part. If replacement parts are required within the period of this warranty, 

MARS replacement parts shall be used; any warranty on the replacement 

part(s) shall not affect the applicable original unit warranty. Ready access 

to the unit for service is the owner’s responsibility. Labor to diagnose and 

replace the defective part is not covered by this Limited Express Warranty. 

If for any reason the replacement part/product is no longer available during 

the warranty period, MARS shall have the right to allow a credit in the 

amount of the current suggested retail price of the part/product instead of 

providing repair or replacement. 

LIMITATION OF LIABILITY

1. There are no other express or implied warranties. MARS makes no

warranty of merchantability. We do not warrant that the unit is suitable

for any particular purpose or can be used in buildings or rooms of

any particular size or condition except as specifically provided in this

document. There are no other warranties, express or implied, which

extend beyond the description in this document.

2. All warranties implied by law are limited in duration to the seven-

year term of the parts warranty. Your exclusive remedy is limited to

the replacement of defective parts. 

We will not be liable for any

consequential or incidental damages caused by any defect in this

unit.

3. This warranty gives you specific legal rights and you may also have

other rights which vary from state to state. Some states do not allow

limitation on how long an implied warranty lasts or do not allow the

exclusion or limitation of incidental or consequential damages, so the

above limitations or exclusions may not apply to you.

4. No warranties are made for units sold outside the continental United

States and Canada. Your distributor or final seller may provide a

warranty on units sold outside these areas.

5. MARS will not be liable for damages if our performance regarding

warranty resolution is delayed by events beyond our control including

accident, alteration, abuse, war, government restrictions, strikes, fire,

flood, or other acts of God.

HOW TO OBTAIN WARRANTY SERVICE OR PARTS

If you have a warranty claim, notify your installer promptly. If the installer 

does not remedy your claim, write to MARS, 1900 Wellworth Ave., Jackson 

MI 49203. Enclose a report of inspection by your installer or service person. 

Include model number, serial number, and date of purchase.

Owner responsibilities are set forth in the 

instruction manual—read it carefully.

LIMITED EXPRESS WARRANTY

VMH ULTRAV_WARRANTY_1/2018

KEEP THIS INFORMATION AS A RECORD OF YOUR PURCHASE

Outdoor Unit:   Model No. _______________ Serial No. _______________

Indoor Unit 1: Model No. _______________ Serial No. _______________

Indoor Unit 2: Model No. _______________ Serial No. _______________

Indoor Unit 3: Model No. _______________ Serial No. _______________

Indoor Unit 4: Model No. _______________ Serial No. _______________

Date of Purchase

______________________________________________________ 

Summary of Contents for Comfort-Aire Century B-VMH09DU-1

Page 1: ...OWNER S MANUAL Ducted Unit Models B VMH09DU 1 B VMH12DU 1 B VMH18DU 1 B VMH24DU 1 517 787 2100 www marsdelivers com...

Page 2: ...Owner s Manual B VMH09 12 18 24DU 1 2 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 3: ...Owner s Manual B VMH09 12 18 24DU 1 3 Indoor Unit Parts and Major Functions 6 Manual Operations 8 Table of Contents Owner s Manual SAFETY FIRST Safety Precautions 5 1 2 3...

Page 4: ...Maintenance 9 a Unit Maintenance 9 b How to Clean the Air Filter 9 c Repairing Refrigerant Leaks 10 d Preparation for Periods of Non use 10 Troubleshooting 11 a Common Problems 11 b Troubleshooting Ti...

Page 5: ...iance must be installed by installers or contractors who are licensed HVAC professionals and in compliance with all local state and provincial laws Failure to observe a caution may result in injury or...

Page 6: ...fixed wiring according to the national rule If the supply cord is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard The applia...

Page 7: ...he room DO NOT place objects near the air inlet and outlet of the unit Set a timer and use the built in SLEEP ECONOMY mode if applicable If you don t plan to use the unit for a long time remove the ba...

Page 8: ...der AUTO FORCED COOL OFF FORCED COOL mode In FORCED COOL mode the Operation light flashes The system will then turn to AUTO after it has cooled with a high wind speed for 30 minutes The remote control...

Page 9: ...se chemicals or chemically treated cloths to clean the unit DO NOT use benzene paint thinner polishing powder or other solvents to clean the unit They can cause the plastic surface to crack or deform...

Page 10: ...EC and the LED indicator light will flash Preparation For Periods Of Non Use Maintenance after Extended Non Use 1 Remove any obstacles blocking the vents of both the indoor and outdoor units 2 Clean t...

Page 11: ...hanges its setting to prevent frost from forming on the unit Once the temperature increases the unit will start operating again The set temperature has been reached at which point the unit turns off t...

Page 12: ...on the indoor or outdoor unit is dirty Clean the affected heat exchanger The air filter is dirty Remove the filter and clean it according to instructions The air inlet or outlet of either unit is bloc...

Page 13: ...n 10 Off 10 Overload protection 1 On F0 11 Outdoor temperature sensor error 2 On F 1 12 Outdoor condenser pipe sensor error 3 On F2 13 Discharge air temperature sensor error 4 On F3 14 Outdoor EEPROM...

Page 14: ...When disposing of this appliance you have the following options Dispose of the appliance at designated municipal electronic waste collection facility When buying a new appliance the retailer will take...

Page 15: ...f of warranty period Without this proof the express warranty begins on the date of shipment from the factory Please visit www marsdelivers com to register your new product REMEDY PROVIDED BY THE LIMIT...

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